/* ============================================================
   科伊博 KOYIBO 官网 · 设计系统 v2
   语言：精密 · 克制 —— 深蓝深灰为底，单一信号钢蓝，产品即主角
   参考：DJI（黑白极简/满屏产品）、Unitree（大字号/深色沉浸）、
        AIDA & Schuler（技术手册式参数排布）
   ============================================================ */

:root {
  /* 中性色阶 */
  --ink: #0a1622;
  --ink-2: #0e1c2c;
  --ink-3: #16324a;
  --paper: #ffffff;
  --paper-2: #f2f4f6;
  --paper-3: #e9edf1;
  --line: #dfe4e9;
  --line-2: #ccd4db;
  --muted: #5d6a76;
  --muted-2: #6b7885;
  --white-90: #edeff2;
  --white-70: #a9aeb6;
  --white-50: #8b9099;
  --line-dark: rgba(255, 255, 255, .13);

  /* 单一强调色：信号钢蓝 */
  --accent: #2d74b5;
  --accent-hi: #3e86c6;
  --accent-soft: #e9f1f8;

  /* 排版 */
  --font: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Helvetica Neue", "Segoe UI", system-ui, sans-serif;

  --fs-display: clamp(34px, 4.4vw, 64px);
  --fs-h2: clamp(26px, 2.9vw, 40px);
  --fs-h3: 19px;

  --header-h: 78px;
  --radius: 4px;

  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.85;
  letter-spacing: .01em;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; }
::selection { background: var(--accent); color: #fff; }

.container { width: min(1240px, 90%); margin: 0 auto; }
.section { padding: clamp(64px, 8vw, 116px) 0; }
.section--soft { background: var(--paper-2); }
.section--dark { background: var(--ink); color: var(--white-90); }
.section--tight { padding-bottom: 0; }

/* ---------- 章节标题 ---------- */
.sec-head { max-width: 760px; margin-bottom: clamp(40px, 5vw, 64px); }
.sec-head .eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-num); font-size: 11px; font-weight: 600;
  letter-spacing: .26em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 18px;
}
.sec-head .eyebrow::before {
  content: ""; width: 22px; height: 1px; background: var(--accent);
}
.sec-head h2 {
  font-size: var(--fs-h2); line-height: 1.24; font-weight: 700;
  letter-spacing: -.01em;
}
.sec-head p { color: var(--muted); margin-top: 16px; font-size: 16px; line-height: 1.85; max-width: 640px; }
.sec-head .bar { display: none; }
.sec-head--center { text-align: center; margin-left: auto; margin-right: auto; }
.sec-head--center .eyebrow::before { display: none; }
.sec-head--center .eyebrow::after,
.sec-head--center .eyebrow::before { content: none; }
.sec-head--center p { margin-left: auto; margin-right: auto; }

.section--dark .sec-head .eyebrow { color: var(--white-50); }
.section--dark .sec-head h2 { color: #fff; }
.section--dark .sec-head p { color: var(--white-70); }

/* ============================================================
   顶部导航（固定定位，覆盖在深色首屏之上，滚动后翻白）
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .35s var(--ease), border-color .35s, backdrop-filter .35s;
}
.site-header::after {
  content: ""; position: absolute; left: 0; bottom: -1px; height: 2px;
  width: var(--sp, 0%); background: var(--accent);
  transition: width .1s linear;
}
.site-header.solid {
  background: rgba(8, 18, 29, .93);
  backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: rgba(255, 255, 255, .09);
}
.site-header.scrolled { box-shadow: none; }

.nav { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand__logo {
  width: 38px; height: 38px; border-radius: 2px;
  background: #fff; color: var(--ink);
  display: grid; place-items: center;
  font-family: var(--font-num); font-weight: 800; font-size: 12.5px;
  letter-spacing: .06em;
  transition: background .35s, color .35s;
}
.brand__name {
  font-size: 17px; font-weight: 700; letter-spacing: .06em;
  color: #fff; line-height: 1.2; transition: color .35s;
}
.brand__name small {
  display: block; font-family: var(--font-num);
  font-size: 9.5px; font-weight: 500;
  color: rgba(255,255,255,.55); letter-spacing: .22em;
  margin-top: 2px; transition: color .35s;
}
.site-header.solid .brand__logo { background: #fff; color: var(--ink); }
.site-header.solid .brand__name { color: #fff; }
.site-header.solid .brand__name small { color: var(--white-50); }

.nav__links { display: flex; align-items: center; gap: 2px; }
.nav__links a {
  position: relative;
  padding: 10px 15px; font-size: 14.5px; font-weight: 500;
  color: rgba(255,255,255,.82); letter-spacing: .02em;
  transition: color .25s;
}
.nav__links a::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 4px;
  height: 1px; background: currentColor; transform: scaleX(0);
  transform-origin: left; transition: transform .35s var(--ease);
}
.nav__links a:hover::after { transform: scaleX(1); }
.nav__links a:hover, .nav__links a.active { color: #fff; }
.nav__links a.active::after { transform: scaleX(1); background: var(--accent); }
.site-header.solid .nav__links a { color: rgba(255, 255, 255, .72); }
.site-header.solid .nav__links a:hover,
.site-header.solid .nav__links a.active { color: #fff; }

.nav__cta {
  margin-left: 18px; padding: 11px 24px !important;
  border-radius: 3px; background: var(--accent); color: #fff !important;
  font-size: 14px !important; font-weight: 600; letter-spacing: .03em;
  transition: background .25s, transform .25s;
}
.nav__cta::after { display: none; }
.nav__cta:hover { background: var(--accent-hi); transform: translateY(-1px); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 10px; margin-right: -10px; }
.nav-toggle span {
  display: block; width: 22px; height: 1.6px; background: #fff;
  margin: 5px 0; border-radius: 1px; transition: .3s var(--ease);
}
.site-header.solid .nav-toggle span { background: #fff; }

/* ============================================================
   首屏
   ============================================================ */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: var(--ink);
  padding-top: var(--header-h);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(760px 520px at 78% 8%, rgba(62, 134, 198, .16), transparent 62%),
    radial-gradient(620px 460px at 6% 96%, rgba(255, 255, 255, .05), transparent 66%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: grid; grid-template-columns: 1.02fr .98fr;
  gap: clamp(32px, 5vw, 72px); align-items: center;
  padding: clamp(56px, 7vw, 92px) 0 clamp(56px, 7vw, 88px);
  min-height: calc(88vh - var(--header-h));
}
.hero__tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-num); font-size: 11.5px; font-weight: 600;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--white-70);
  padding-bottom: 0; border: 0; background: none; border-radius: 0;
}
.hero__tag .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 4px rgba(62, 134, 198, .22);
}
.hero h1 {
  margin-top: 26px;
  font-size: var(--fs-display); line-height: 1.18;
  letter-spacing: -.02em; font-weight: 700;
}
.hero h1 .accent { color: var(--accent); -webkit-text-fill-color: var(--accent); background: none; }
.hero__desc {
  margin-top: 24px; font-size: 16.5px; line-height: 1.85;
  color: var(--white-70); max-width: 520px;
}
.hero__actions { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero__meta {
  margin-top: 46px; display: flex; gap: 0; flex-wrap: wrap;
  border-top: 1px solid var(--line-dark); padding-top: 22px;
}
.hero__meta li {
  padding-right: 30px; margin-right: 30px;
  border-right: 1px solid var(--line-dark);
}
.hero__meta li:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.hero__meta b {
  display: block; font-family: var(--font-num); font-size: 19px;
  font-weight: 600; color: #fff; letter-spacing: .02em;
}
.hero__meta span { font-size: 12.5px; color: var(--white-50); letter-spacing: .04em; }

/* 首屏产品台 */
.hero__figure {
  position: relative; margin: 0; border: 0; border-radius: var(--radius);
  overflow: hidden; background: var(--paper-2);
  box-shadow: none; transform: none;
}
.hero__figure img {
  width: 100%; height: clamp(340px, 46vh, 520px);
  object-fit: contain; padding: 26px 26px 40px;
  transition: transform .9s var(--ease);
}
.hero__figure:hover img { transform: scale(1.02); }
.hero__figure .badge {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: rgba(11, 12, 14, .9); color: var(--white-90);
  border: 0; border-radius: 0; backdrop-filter: blur(8px);
  padding: 13px 20px; font-size: 12.5px; letter-spacing: .04em;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.hero__figure .badge b {
  color: var(--accent-hi); font-family: var(--font-num);
  font-size: 13.5px; letter-spacing: .02em;
}

/* ============================================================
   数据条
   ============================================================ */
.stats { background: var(--paper); border-bottom: 1px solid var(--line); }
.stats__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 0;
}
.stat {
  padding: 46px 32px; border-left: 1px solid var(--line);
  transition: background .3s;
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat:last-child { padding-right: 0; }
.stat:hover { background: var(--paper-2); }
.stat b {
  display: block; font-family: var(--font-num);
  font-size: clamp(30px, 3.4vw, 44px); line-height: 1;
  font-weight: 600; color: var(--ink);
  letter-spacing: -.02em; font-variant-numeric: tabular-nums;
}
.stat b small {
  font-family: var(--font); font-size: 14px; font-weight: 500;
  color: var(--muted); margin-left: 5px; letter-spacing: .02em;
}
.stat span {
  display: block; margin-top: 14px; color: var(--muted);
  font-size: 13px; letter-spacing: .06em;
}

/* ============================================================
   产品矩阵（左侧索引 + 右侧舞台）
   ============================================================ */
.showcase { display: grid; grid-template-columns: 340px 1fr; gap: clamp(28px, 4vw, 64px); align-items: start; }
.showcase__nav { border-top: 1px solid var(--line); position: sticky; top: calc(var(--header-h) + 24px); }
.showcase__btn {
  width: 100%; text-align: left; background: none; border: 0;
  border-bottom: 1px solid var(--line); cursor: pointer;
  padding: 17px 4px; display: flex; align-items: center; gap: 14px;
  color: var(--muted); font-size: 15px; font-weight: 500;
  transition: color .25s, padding .3s var(--ease);
}
.showcase__btn .no {
  font-family: var(--font-num); font-size: 11px; font-weight: 600;
  letter-spacing: .08em; color: var(--muted-2); transition: color .25s;
}
.showcase__btn .txt { flex: 1; line-height: 1.4; }
.showcase__btn .arw { opacity: 0; transform: translateX(-6px); transition: .3s var(--ease); font-size: 13px; }
.showcase__btn:hover { color: var(--ink); }
.showcase__btn.active { color: var(--ink); font-weight: 700; padding-left: 12px; }
.showcase__btn.active .no { color: var(--accent); }
.showcase__btn.active .arw { opacity: 1; transform: none; color: var(--accent); }

.showcase__panel { display: none; }
.showcase__panel.active { display: block; animation: fadeUp .55s var(--ease) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.showcase__stage {
  background: var(--paper-2); border-radius: var(--radius);
  display: grid; place-items: center; padding: 34px;
  min-height: 420px; position: relative; overflow: hidden;
}
.showcase__stage img { max-height: 400px; width: auto; object-fit: contain; transition: transform .8s var(--ease); }
.showcase__stage:hover img { transform: scale(1.03); }
.showcase__stage .idx {
  position: absolute; top: 20px; left: 22px;
  font-family: var(--font-num); font-size: 12px; font-weight: 600;
  letter-spacing: .14em; color: var(--muted-2);
}
.showcase__body { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(20px, 3vw, 44px); margin-top: 26px; }
.showcase__body h3 { font-size: 24px; letter-spacing: -.01em; line-height: 1.35; }
.showcase__body .model {
  font-family: var(--font-num); font-size: 12.5px; font-weight: 600;
  letter-spacing: .1em; color: var(--accent); margin-bottom: 8px; display: block;
}
.showcase__body p { color: var(--muted); font-size: 14.5px; line-height: 1.9; margin-top: 14px; }
.spec-grid { border-top: 1px solid var(--line); }
.spec-grid > div {
  display: flex; justify-content: space-between; gap: 14px;
  padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 13.5px;
}
.spec-grid dt { color: var(--muted); }
.spec-grid dd { font-family: var(--font-num); font-weight: 600; color: var(--ink); letter-spacing: .02em; text-align: right; }
.showcase__link {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 22px;
  font-size: 14px; font-weight: 600; color: var(--ink);
  padding-bottom: 4px; border-bottom: 1px solid var(--ink);
  transition: gap .25s var(--ease), color .25s;
}
.showcase__link:hover { gap: 14px; color: var(--accent); border-color: var(--accent); }

/* ============================================================
   能力 / 优势（深色工程感）
   ============================================================ */
.capability { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(32px, 5vw, 80px); align-items: start; }
.capability__lead { position: sticky; top: calc(var(--header-h) + 40px); }
.capability__lead .eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-num); font-size: 11px; font-weight: 600;
  letter-spacing: .26em; text-transform: uppercase;
  color: var(--white-50); margin-bottom: 20px;
}
.capability__lead .eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--accent); }
.showcase__link--light { color: #fff; border-color: rgba(255, 255, 255, .4); }
.showcase__link--light:hover { color: var(--accent-hi); border-color: var(--accent-hi); }
.capability__lead h2 {
  font-size: var(--fs-h2); line-height: 1.22; color: #fff;
  letter-spacing: -.01em; font-weight: 700;
}
.capability__lead p { color: var(--white-70); margin-top: 20px; font-size: 15.5px; line-height: 1.9; }
.capability__list { display: grid; }
.cap-item {
  display: grid; grid-template-columns: 54px 1fr; gap: 22px;
  padding: 32px 0; border-top: 1px solid var(--line-dark);
}
.cap-item:last-child { border-bottom: 1px solid var(--line-dark); }
.cap-item .no {
  font-family: var(--font-num); font-size: 12px; font-weight: 600;
  letter-spacing: .1em; color: var(--accent); padding-top: 5px;
}
.cap-item h3 { color: #fff; font-size: 18.5px; font-weight: 600; letter-spacing: .01em; }
.cap-item p { color: var(--white-70); font-size: 14.5px; line-height: 1.9; margin-top: 10px; }

/* 兼容旧结构：浅色 feature 卡 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line); }
.feature {
  display: flex; gap: 20px; padding: 32px 30px 32px 0;
  background: none; border: 0; border-bottom: 1px solid var(--line);
  transition: background .3s;
}
.feature:nth-child(odd) { padding-right: 40px; border-right: 1px solid var(--line); }
.feature:nth-child(even) { padding-left: 40px; }
.feature:hover { transform: none; box-shadow: none; }
.feature__icon {
  flex: 0 0 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; font-size: 0;
  background: none; color: var(--accent);
  border: 1px solid var(--line-2);
  counter-increment: feat;
}
.feature-list { counter-reset: feat; }
.feature__icon::before {
  content: counter(feat, decimal-leading-zero);
  font-family: var(--font-num); font-size: 11.5px; font-weight: 600;
  letter-spacing: .04em;
}
.feature h3 { font-size: 17px; margin-bottom: 8px; font-weight: 600; }
.feature p { color: var(--muted); font-size: 14.5px; line-height: 1.9; }

/* ============================================================
   行业应用（编辑式列表）
   ============================================================ */
.industries { display: grid; grid-template-columns: repeat(2, 1fr); column-gap: clamp(24px, 4vw, 64px); counter-reset: ind; }
.industry {
  display: grid; grid-template-columns: 34px 1fr auto; align-items: center;
  gap: 18px; padding: 26px 0; border-top: 1px solid var(--line);
  background: none; border-radius: 0; text-align: left;
  transition: padding .3s var(--ease);
}
.industry:nth-child(-n+2) { border-top: 0; padding-top: 0; }
.industry:last-child, .industry:nth-last-child(2):nth-child(odd) { border-bottom: 1px solid var(--line); }
.industry .ico {
  counter-increment: ind; font-size: 0;
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--line-2); color: var(--muted);
}
.industry .ico::before {
  content: counter(ind, decimal-leading-zero);
  font-family: var(--font-num); font-size: 10.5px; font-weight: 600;
  letter-spacing: .04em;
}
.industry h3 { font-size: 17px; font-weight: 600; letter-spacing: .01em; }
.industry p { margin-top: 4px; font-size: 13.5px; color: var(--muted); grid-column: 2; }
.industry::after {
  content: "→"; grid-column: 3; grid-row: 1 / span 2;
  color: var(--muted-2); font-size: 15px;
  opacity: 0; transform: translateX(-6px); transition: .3s var(--ease);
}
.industry:hover { padding-left: 8px; }
.industry:hover::after { opacity: 1; transform: none; color: var(--accent); }
.industry:hover .ico { border-color: var(--accent); color: var(--accent); }

/* ============================================================
   流程
   ============================================================ */
.steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  counter-reset: step; border-top: 1px solid var(--line-2);
}
.step {
  position: relative; padding: 30px 26px 30px 0;
  background: none; border: 0; border-radius: 0;
}
.step + .step { padding-left: 26px; border-left: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  position: static; display: block; margin-bottom: 22px;
  font-family: var(--font-num); font-size: 12px; font-weight: 600;
  letter-spacing: .12em; color: var(--accent);
  background: none;
}
.step .ico { display: none; }
.step h3 { font-size: 17px; font-weight: 600; margin-top: 0; }
.step p { margin-top: 8px; font-size: 13.5px; color: var(--muted); line-height: 1.85; }

/* ============================================================
  按钮
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 15px 34px; border-radius: 3px; border: 1px solid transparent;
  font-size: 14.5px; font-weight: 600; letter-spacing: .03em;
  cursor: pointer; transition: transform .3s var(--ease), background .25s, border-color .25s, color .25s;
  white-space: nowrap;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-hi); transform: translateY(-2px); }
.btn--ghost {
  border-color: rgba(255, 255, 255, .3); color: #fff; background: transparent;
}
.btn--ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .08); transform: translateY(-2px); }
.btn--blue { background: var(--ink); color: #fff; }
.btn--blue:hover { background: var(--ink-3); transform: translateY(-2px); }
.btn--light { background: #fff; color: var(--ink); }
.btn--light:hover { background: var(--paper-2); transform: translateY(-2px); }

/* ============================================================
  卡片（产品 / 通用）
   ============================================================ */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line); }
.grid-3 > *, .grid-2 > * { border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); }
.grid-3 > *:nth-child(3n), .grid-2 > *:nth-child(2n) { border-right: 0; }

.card {
  background: none; border-radius: 0; box-shadow: none;
  display: flex; flex-direction: column; overflow: visible;
  padding: 26px 26px 30px;
  transition: background .35s var(--ease);
}
.card:hover { transform: none; box-shadow: none; background: var(--paper-2); }
.card__img {
  height: 210px; background: none; border: 0;
  display: grid; place-items: center; overflow: hidden;
  margin-bottom: 22px;
}
.card__img img { width: 100%; height: 100%; object-fit: contain; padding: 0; transition: transform .7s var(--ease); }
.card:hover .card__img img { transform: scale(1.04); }
.card__body { padding: 0; flex: 1; display: flex; flex-direction: column; }
.card__body h3 { font-size: 17px; line-height: 1.5; margin-bottom: 10px; letter-spacing: .01em; font-weight: 600; }
.card__body h3 .num {
  display: block; font-family: var(--font-num); font-size: 11px;
  color: var(--accent); letter-spacing: .12em; margin: 0 0 10px;
}
.card__body p { color: var(--muted); font-size: 14px; line-height: 1.85; flex: 1; }
.card__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.tag {
  font-family: var(--font-num); font-size: 11px; padding: 4px 10px;
  border-radius: 2px; background: var(--paper-2); color: var(--muted);
  font-weight: 500; letter-spacing: .04em;
}
.section--soft .tag { background: #fff; }
.tag--orange { background: var(--accent-soft); color: var(--accent); }

/* ============================================================
  内页头图
   ============================================================ */
.page-hero {
  position: relative; color: #fff; background: var(--ink);
  padding: calc(var(--header-h) + clamp(58px, 7vw, 96px)) 0 clamp(48px, 5vw, 68px);
  text-align: left; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(620px 380px at 82% 0%, rgba(62, 134, 198, .15), transparent 64%);
}
.page-hero .container { position: relative; }
.page-hero h1 {
  font-size: clamp(30px, 3.8vw, 50px); letter-spacing: -.015em;
  font-weight: 700; line-height: 1.2;
}
.page-hero p { color: var(--white-70); margin-top: 16px; font-size: 16px; line-height: 1.8; max-width: 620px; }
.breadcrumb {
  font-family: var(--font-num); font-size: 11.5px; letter-spacing: .12em;
  color: var(--white-50); margin-top: 26px; text-transform: uppercase;
}
.breadcrumb a:hover { color: #fff; }

/* ============================================================
  产品详情
   ============================================================ */
.product-detail {
  display: grid; grid-template-columns: 1fr 1.05fr;
  gap: clamp(28px, 4vw, 64px); padding: clamp(36px, 5vw, 64px) 0;
  align-items: start;
}
.product-detail + .product-detail { border-top: 1px solid var(--line); }
.product-detail--rev .product-detail__img { order: 2; }
.product-detail__img {
  border-radius: var(--radius); overflow: hidden; box-shadow: none;
  background: var(--paper-2); padding: 30px; position: sticky;
  top: calc(var(--header-h) + 30px);
}
.product-detail__img img { width: 100%; height: clamp(240px, 34vw, 400px); object-fit: contain; }
.product-detail h2 { font-size: clamp(22px, 2.3vw, 30px); line-height: 1.35; margin-bottom: 10px; letter-spacing: -.01em; }
.product-detail .model {
  display: inline-block; color: var(--accent); font-size: 11.5px; font-weight: 600;
  letter-spacing: .1em; font-family: var(--font-num);
  padding: 4px 10px; background: var(--accent-soft); border-radius: 2px;
}
.product-detail .desc { color: var(--muted); margin-top: 18px; font-size: 15px; line-height: 1.9; }

.spec-table { width: 100%; border-collapse: collapse; margin-top: 26px; font-size: 14px; }
.spec-table caption {
  text-align: left; font-family: var(--font-num); font-size: 11px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2);
  padding-bottom: 12px; font-weight: 600;
}
.spec-table th, .spec-table td { border-bottom: 1px solid var(--line); padding: 12px 4px; text-align: left; }
.spec-table th {
  background: none; width: 44%; font-weight: 400; color: var(--muted); font-size: 13.5px;
}
.spec-table td { font-family: var(--font-num); font-weight: 600; color: var(--ink); letter-spacing: .02em; }
.spec-table tr:hover td, .spec-table tr:hover th { background: var(--paper-2); }

.apply-box {
  margin-top: 24px; padding: 20px 22px; border-radius: var(--radius);
  background: var(--paper-2); border-left: 2px solid var(--accent);
  font-size: 14px; color: var(--muted); line-height: 1.9;
}
.apply-box b { color: var(--ink); }

/* ============================================================
   关于我们
   ============================================================ */
.about-hero-img {
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-md); border: 1px solid var(--line);
}
.about-hero-img img { width: 100%; height: clamp(420px, 44vw, 620px); object-fit: cover; display: block; }
.timeline { border-left: 1px solid var(--line-2); padding-left: 30px; margin-left: 6px; }
.timeline li { position: relative; padding-bottom: 28px; color: var(--muted); font-size: 15px; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before {
  content: ""; position: absolute; left: -35px; top: 9px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--paper); border: 1.5px solid var(--accent);
}
.timeline b { color: var(--ink); font-family: var(--font-num); letter-spacing: .04em; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: start; }

/* ============================================================
   联系页
   ============================================================ */
.contact-wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(28px, 4vw, 56px); align-items: start; }
.form-card {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: clamp(26px, 3vw, 42px);
  box-shadow: none;
}
.form-card h2 { font-size: 24px; margin-bottom: 8px; letter-spacing: -.01em; }
.form-card > p { color: var(--muted); font-size: 14px; margin-bottom: 28px; line-height: 1.8; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { margin-bottom: 20px; }
.field label {
  display: block; font-family: var(--font-num); font-size: 11px; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; margin-bottom: 9px; color: var(--muted);
}
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 14px; border: 1px solid var(--line-2);
  border-radius: 2px; font-size: 14.5px; font-family: var(--font);
  background: var(--paper); color: var(--ink);
  transition: border-color .2s, box-shadow .2s;
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted-2); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(11, 12, 14, .06);
}
.field textarea { min-height: 130px; resize: vertical; }
.field .err { display: none; color: var(--accent); font-size: 12.5px; margin-top: 6px; }
.field.invalid input, .field.invalid textarea, .field.invalid select { border-color: var(--accent); }
.field.invalid .err { display: block; }
.form-note { font-size: 12.5px; color: var(--muted-2); margin-top: 16px; line-height: 1.8; }
.form-status { display: none; margin-top: 18px; padding: 13px 16px; border-radius: 2px; font-size: 14px; }
.form-status.ok { display: block; background: #eef8f1; color: #16693b; border: 1px solid #cbe8d6; }
.form-status.fail { display: block; background: #fdecea; color: #b3360b; border: 1px solid #f5c9b8; }

.info-card {
  background: var(--ink); color: var(--white-90);
  border-radius: var(--radius); padding: clamp(26px, 3vw, 40px);
  box-shadow: none; position: sticky; top: calc(var(--header-h) + 30px);
}
.info-card h3 { font-size: 19px; margin-bottom: 26px; color: #fff; letter-spacing: .01em; }
.info-card li { display: flex; gap: 14px; margin-bottom: 22px; align-items: flex-start; }
.info-card li:last-child { margin-bottom: 0; }
.info-card .ico {
  flex: 0 0 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; font-size: 14px;
  background: none; border: 1px solid var(--line-dark);
}
.info-card b {
  display: block; font-family: var(--font-num); font-size: 10.5px;
  color: var(--accent-hi); margin-bottom: 4px; letter-spacing: .14em;
  text-transform: uppercase; font-weight: 600;
}
.info-card span { font-size: 14.5px; color: var(--white-70); line-height: 1.7; }
.info-card a:hover { color: #fff; }
.qr-row { display: flex; gap: 18px; margin-top: 30px; align-items: center; padding-top: 24px; border-top: 1px solid var(--line-dark); }
.qr-row img { width: 96px; height: 96px; border-radius: 2px; background: #fff; padding: 6px; }
.qr-row p { font-size: 13px; color: var(--white-70); line-height: 1.7; }

/* ============================================================
   招聘
   ============================================================ */
.job-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.job-card {
  background: none; border: 0; border-bottom: 1px solid var(--line);
  border-radius: 0; padding: 38px 0; box-shadow: none;
  transition: none; display: grid; grid-template-columns: 300px 1fr; gap: clamp(20px, 4vw, 56px);
}
.job-card:hover { box-shadow: none; transform: none; }
.job-card__head { display: block; border: 0; padding: 0; }
.job-card__head h3 { font-size: 21px; letter-spacing: -.01em; line-height: 1.4; }
.job-card__meta { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.job-card__meta span {
  font-family: var(--font-num); font-size: 10.5px; padding: 4px 10px;
  border-radius: 2px; background: var(--paper-2); color: var(--muted);
  font-weight: 500; letter-spacing: .04em;
}
.job-card__meta span.hot { background: var(--accent-soft); color: var(--accent); }
.job-block { margin-top: 22px; }
.job-block h4 {
  font-family: var(--font-num); font-size: 11px; color: var(--ink);
  margin-bottom: 12px; padding-left: 0; border-left: 0;
  letter-spacing: .14em; text-transform: uppercase; line-height: 1.2; font-weight: 600;
}
.job-block ul { display: grid; gap: 8px; }
.job-block li {
  position: relative; padding-left: 16px; font-size: 14.5px;
  line-height: 1.9; color: var(--muted);
}
.job-block li::before {
  content: ""; position: absolute; left: 1px; top: 12px;
  width: 4px; height: 4px; border-radius: 50%; background: var(--muted-2);
}
.job-salary {
  margin-top: 22px; padding: 18px 22px; border-radius: var(--radius);
  background: var(--accent-soft); border: 0; border-left: 2px solid var(--accent);
  font-size: 14.5px; color: #1c4a73; line-height: 1.9;
}
.job-salary b { color: var(--accent); }
.perk-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.perk {
  text-align: left; padding: 30px 24px 30px 0; background: none;
  border: 0; border-bottom: 1px solid var(--line); border-radius: 0;
  transition: none; counter-increment: perk;
}
.perk-grid { counter-reset: perk; }
.perk + .perk { padding-left: 24px; border-left: 1px solid var(--line); }
.perk:hover { border-color: var(--line); transform: none; box-shadow: none; }
.perk .ico { font-size: 0; width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line-2); border-radius: 50%; color: var(--accent); }
.perk .ico::before { content: counter(perk, decimal-leading-zero); font-family: var(--font-num); font-size: 10px; font-weight: 600; }
.perk h3 { font-size: 16px; margin-top: 14px; font-weight: 600; }
.perk p { font-size: 13px; color: var(--muted); margin-top: 6px; line-height: 1.8; }
.apply-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); }
.apply-steps > * { padding: 28px 24px 28px 0; border-bottom: 1px solid var(--line); }
.apply-steps > * + * { padding-left: 24px; border-left: 1px solid var(--line); }

/* ============================================================
  深色 CTA 区
   ============================================================ */
.cta-band {
  position: relative; overflow: hidden; border-radius: 0;
  padding: clamp(52px, 7vw, 92px) 0; color: #fff;
  background: var(--ink);
  display: block;
}
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-band h2 { font-size: clamp(26px, 3vw, 40px); letter-spacing: -.015em; line-height: 1.25; }
.cta-band p { color: var(--white-70); margin-top: 16px; max-width: 560px; font-size: 15.5px; line-height: 1.85; }
.cta-band__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-wrap { background: var(--ink); }

/* ============================================================
   页脚
   ============================================================ */
.site-footer { background: var(--ink-2); color: var(--white-70); margin-top: 0; border-top: 1px solid var(--line-dark); }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 44px; padding: clamp(48px, 6vw, 76px) 0 40px;
}
.site-footer .brand__logo { background: #fff; color: var(--ink); }
.site-footer h4 {
  color: #fff; font-family: var(--font-num); font-size: 11px;
  margin-bottom: 20px; letter-spacing: .18em; text-transform: uppercase; font-weight: 600;
}
.site-footer a:hover { color: #fff; }
.footer-about p { font-size: 13.5px; margin-top: 20px; max-width: 320px; line-height: 1.9; color: var(--white-50); }
.footer-links li { margin-bottom: 12px; font-size: 14px; }
.footer-links a { color: var(--white-70); transition: color .2s; }
.footer-contact li {
  display: flex; gap: 12px; margin-bottom: 14px; font-size: 14px; line-height: 1.7;
  color: var(--white-70);
}
.footer-contact .ico { flex: 0 0 auto; font-size: 13px; opacity: .8; }
/* 备案号：工信部要求页脚展示并链接 beian.miit.gov.cn */
.footer-bottom .icp {
  color: inherit; text-decoration: none; white-space: nowrap;
  border-bottom: 1px solid transparent; transition: color .2s, border-color .2s;
}
.footer-bottom .icp:hover { color: #fff; border-bottom-color: currentColor; }
.footer-bottom .icp:focus-visible { outline: 2px solid var(--steel, #2d74b5); outline-offset: 3px; }

.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding: 22px 0; font-family: var(--font-num); font-size: 11.5px;
  color: var(--white-50); display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 10px; letter-spacing: .06em;
}

/* ============================================================
   悬浮客服
   ============================================================ */
.chat-fab {
  position: fixed; right: 26px; bottom: 26px; z-index: 200;
  display: flex; flex-direction: column; gap: 10px; align-items: center;
}
.fab-btn {
  width: 54px; height: 54px; border-radius: 50%; border: 0; cursor: pointer;
  display: grid; place-items: center; font-size: 20px;
  box-shadow: 0 8px 24px rgba(11, 12, 14, .18);
  transition: transform .25s var(--ease), background .25s;
  color: #fff;
}
.fab-btn:hover { transform: translateY(-2px); }
.fab-btn--chat { background: var(--accent); }
.fab-btn--chat:hover { background: var(--accent-hi); }
.fab-btn--top {
  background: var(--paper); color: var(--ink); border: 1px solid var(--line);
  font-size: 17px; opacity: 0; pointer-events: none;
  transition: opacity .3s, transform .25s, background .25s;
}
.fab-btn--top.show { opacity: 1; pointer-events: auto; }

.chat-panel {
  position: fixed; right: 26px; bottom: 94px; z-index: 210;
  width: 360px; max-width: calc(100vw - 32px);
  background: var(--paper); border-radius: 6px;
  box-shadow: 0 24px 64px rgba(11, 12, 14, .22);
  border: 1px solid var(--line); overflow: hidden;
  opacity: 0; transform: translateY(14px) scale(.98); pointer-events: none;
  visibility: hidden;
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility 0s linear .3s;
}
.chat-panel.open {
  opacity: 1; transform: none; pointer-events: auto; visibility: visible;
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility 0s linear 0s;
}
.chat-head {
  background: var(--ink); color: #fff; padding: 18px 20px;
  display: flex; justify-content: space-between; align-items: center;
}
.chat-head b { font-size: 15px; letter-spacing: .01em; }
.chat-head p { font-size: 11.5px; color: var(--white-50); margin-top: 2px; }
.chat-head .close { background: none; border: 0; color: var(--white-70); font-size: 17px; cursor: pointer; }
.chat-body { padding: 18px; max-height: 360px; overflow-y: auto; background: var(--paper-2); }
.msg {
  max-width: 86%; padding: 11px 14px; border-radius: 8px; font-size: 13.5px;
  margin-bottom: 12px; line-height: 1.75;
}
.msg--bot { background: #fff; border: 1px solid var(--line); }
.msg--user { background: var(--ink); color: #fff; margin-left: auto; }
.chat-quick { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 18px 16px; background: var(--paper-2); }
.chat-quick button {
  border: 1px solid var(--line-2); color: var(--muted); background: #fff;
  border-radius: 3px; padding: 6px 13px; font-size: 12px; cursor: pointer;
  font-family: var(--font); transition: all .2s;
}
.chat-quick button:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.chat-foot {
  padding: 14px 18px; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.chat-foot a {
  text-align: center; padding: 11px; border-radius: 3px;
  font-size: 13px; font-weight: 600; transition: opacity .2s;
}
.chat-foot a:hover { opacity: .86; }
.chat-foot .tel { background: var(--paper-2); color: var(--ink); border: 1px solid var(--line); }
.chat-foot .inquiry { background: var(--accent); color: #fff; }

/* ============================================================
   动效
   ============================================================ */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .85s var(--ease), transform .85s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }
.reveal[data-delay="5"] { transition-delay: .4s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .showcase__panel.active { animation: none; }
  * { transition-duration: .01ms !important; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .showcase { grid-template-columns: 1fr; }
  .showcase__nav { position: static; display: flex; flex-wrap: wrap; border-top: 0; border-bottom: 1px solid var(--line); }
  .showcase__btn {
    width: auto; border-bottom: 0; padding: 12px 16px;
    font-size: 13.5px; border: 1px solid var(--line); border-radius: 999px;
    margin: 0 8px 10px 0; border-radius: 3px;
  }
  .showcase__btn .no { display: none; }
  .showcase__btn .arw { display: none; }
  .showcase__btn.active { padding-left: 16px; background: var(--ink); color: #fff; border-color: var(--ink); }
  .showcase__body { grid-template-columns: 1fr; }
  .capability { grid-template-columns: 1fr; }
  .capability__lead { position: static; }
}

@media (max-width: 980px) {
  :root { --header-h: 64px; }
  .hero__inner { grid-template-columns: 1fr; min-height: 0; padding: 48px 0 56px; gap: 36px; }
  .hero__figure img { height: clamp(260px, 40vh, 380px); }
  .hero__meta { margin-top: 34px; }
  .grid-3, .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 > *:nth-child(3n) { border-right: 1px solid var(--line); }
  .grid-3 > *:nth-child(2n), .grid-2 > *:nth-child(2n) { border-right: 0; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 32px 22px; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .industries { grid-template-columns: 1fr; }
  .industry:nth-child(2) { border-top: 1px solid var(--line); padding-top: 26px; }
  .industry:nth-last-child(2):nth-child(odd) { border-bottom: 0; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(3) { padding-left: 0; border-left: 0; }
  .step:nth-child(n+3) { border-top: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .product-detail, .contact-wrap, .feature-list, .grid-2, .two-col, .job-card { grid-template-columns: 1fr; }
  .product-detail__img, .info-card { position: static; }
  .product-detail--rev .product-detail__img { order: 0; }
  .job-card { gap: 4px; padding: 32px 0; }
  .perk-grid { grid-template-columns: repeat(2, 1fr); }
  .perk:nth-child(3) { padding-left: 0; border-left: 0; }
  .perk:nth-child(n+3) { border-top: 1px solid var(--line); }
  .apply-steps { grid-template-columns: 1fr; }
  .apply-steps > * + * { padding-left: 0; border-left: 0; }
  .feature:nth-child(odd) { border-right: 0; padding-right: 0; }
  .feature:nth-child(even) { padding-left: 0; }
  .nav__links {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    background: #0a1622; flex-direction: column; align-items: stretch;
    padding: 10px 6vw 28px; gap: 0; display: none;
    border-bottom: 1px solid rgba(255,255,255,.09);
    box-shadow: 0 24px 48px rgba(4, 10, 17, .45);
    max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  }
  .nav__links.open { display: flex; }
  .nav__links a {
    padding: 16px 2px; font-size: 17px; color: #fff !important;
    border-bottom: 1px solid rgba(255,255,255,.1);
  }
  .nav__links a::after { display: none; }
  .nav__links a.active { color: var(--accent-hi) !important; }
  .nav__cta {
    margin: 18px 0 0; text-align: center; border-bottom: 0 !important;
    color: #fff !important; padding: 14px !important; font-size: 15px !important;
  }
  .nav-toggle { display: block; }
  .cta-band .container { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 620px) {
  body { font-size: 15px; }
  .hero h1 { font-size: clamp(27px, 7.6vw, 34px); line-height: 1.28; margin-top: 20px; }
  .hero__desc { font-size: 14.5px; line-height: 1.85; margin-top: 18px; }
  .hero__actions { margin-top: 28px; gap: 10px; }
  .hero__actions .btn { flex: 1; padding: 13px 18px; font-size: 14px; }
  .hero__meta { gap: 14px 0; margin-top: 30px; }
  .hero__meta li { padding-right: 18px; margin-right: 18px; flex: 1 0 auto; }
  .hero__meta b { font-size: 16px; }
  .hero__meta span { font-size: 11px; }
  .hero__figure img { height: 240px; padding: 18px 18px 44px; }
  .hero__figure .badge { font-size: 11px; padding: 10px 14px; }
  .section { padding: 52px 0; }
  .sec-head { margin-bottom: 32px; }
  .sec-head h2 { font-size: 25px; }
  .sec-head p { font-size: 14px; margin-top: 12px; }
  .stat { padding: 26px 16px; }
  .stat b { font-size: 26px; }
  .stat span { font-size: 11.5px; margin-top: 8px; letter-spacing: 0; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-3 > *:nth-child(n), .grid-2 > *:nth-child(n) { border-right: 0; }
  .card { padding: 20px 0 26px; }
  .card__img { height: 180px; margin-bottom: 16px; }
  .card__body h3 { font-size: 16px; }
  .card__body p { font-size: 13.5px; }
  .showcase__stage { min-height: 250px; padding: 20px; }
  .showcase__stage img { max-height: 230px; }
  .showcase__body h3 { font-size: 20px; }
  .showcase__body p { font-size: 13.5px; }
  .spec-grid > div { font-size: 12.5px; padding: 10px 0; }
  .capability__lead h2 { font-size: 25px; }
  .cap-item { grid-template-columns: 36px 1fr; gap: 14px; padding: 26px 0; }
  .cap-item h3 { font-size: 16.5px; }
  .cap-item p { font-size: 13.5px; }
  .industry h3 { font-size: 15.5px; }
  .industry p { font-size: 12.5px; }
  .steps { grid-template-columns: 1fr; }
  .step { padding: 24px 0; }
  .step + .step { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .step::before { margin-bottom: 12px; }
  .btn { padding: 13px 26px; font-size: 14px; }
  .cta-band { padding: 46px 0; }
  .cta-band h2 { font-size: 23px; }
  .cta-band p { font-size: 14px; }
  .cta-band__actions { width: 100%; }
  .cta-band__actions .btn { flex: 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 30px; }
  .footer-bottom { font-size: 10.5px; }
  .product-detail { padding: 28px 0; }
  .product-detail__img { padding: 18px; }
  .product-detail__img img { height: 230px; }
  .product-detail h2 { font-size: 21px; }
  .spec-table th, .spec-table td { padding: 10px 2px; font-size: 13px; }
  .spec-table th { width: 46%; }
  .about-hero-img img { height: 440px; }
  .form-card, .info-card { padding: 24px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .job-card__head h3 { font-size: 18px; }
  .job-block li { font-size: 13.5px; }
  .perk-grid { grid-template-columns: 1fr; }
  .perk, .perk + .perk { padding: 22px 0; border-left: 0; }
  .perk:nth-child(n+2) { border-top: 1px solid var(--line); }
  .chat-panel { right: 12px; bottom: 84px; width: calc(100vw - 24px); }
  .chat-fab { right: 14px; bottom: 14px; }
  .fab-btn { width: 50px; height: 50px; }
  .page-hero h1 { font-size: 27px; }
  .page-hero p { font-size: 14px; }
}

/* ---------- 工厂实拍 ---------- */
.factory-shot { margin: 0; }
.factory-shot img {
  width: 100%; height: auto; display: block;
  border-radius: 6px; border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}
.factory-shot figcaption {
  margin-top: 12px; font-size: 13px; color: var(--muted);
  font-family: var(--font-num); letter-spacing: .12em;
}
.factory-copy h2 { font-size: clamp(26px, 3vw, 34px); line-height: 1.3; }
.factory-copy > p { color: var(--muted); margin: 18px 0 0; max-width: 46ch; line-height: 1.9; }
.factory-points { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 12px; }
.factory-points li {
  position: relative; padding: 12px 16px 12px 40px;
  background: #fff; border: 1px solid var(--line); border-radius: 4px;
  font-size: 14.5px; color: var(--ink-900);
}
.factory-points li::before {
  content: "✓"; position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-weight: 700;
}
.factory-copy .cta-band__actions { margin-top: 28px; }
@media (max-width: 980px) {
  .factory-shot img { max-height: 520px; object-fit: cover; }
}

/* 浅色底上的描边按钮（深色 CTA 区请继续用 btn--ghost） */
.btn--outline {
  border-color: var(--line-2); color: var(--ink-900); background: #fff;
}
.btn--outline:hover { border-color: var(--ink-900); transform: translateY(-2px); }
.about-intro { align-items: center; }
@media (max-width: 980px) {
  .about-intro { gap: 36px; }
}

/* 页脚品牌（深色底白字，替代逐页内联样式） */
.site-footer .brand__name { color: #fff; }
.site-footer .brand__name small { color: var(--white-50); }
/* 微信二维码区标题（主题强调色，替代旧橙色） */
.qr-row .qr-title { color: var(--accent-hi); }
/* 整宽按钮 */
.btn--block { width: 100%; justify-content: center; }