/* ============================================================
   极仓云官网 · 样式系统
   纯静态 / 零外部依赖 / 响应式
   设计基调：科技深蓝青 + 暖光橙点缀（呼应“灯光”业务）
   ============================================================ */

:root {
  /* 主色 */
  --navy: #0c2340;
  --navy-2: #102b4e;
  --blue: #1565d8;
  --blue-soft: #2f7ff0;
  --cyan: #14c2c2;
  --orange: #ff7a1a;
  --orange-soft: #ffa64d;

  /* 中性 */
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --bg-alt: #eef3f9;
  --ink: #16243a;
  --ink-soft: #586b85;
  --ink-faint: #8a98ad;
  --line: #e4ebf3;
  --line-soft: #eef2f7;

  /* 暗场 */
  --dark: #0a1c33;
  --dark-2: #0f2645;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(16, 40, 78, 0.06);
  --shadow-md: 0 10px 30px rgba(16, 40, 78, 0.10);
  --shadow-lg: 0 20px 50px rgba(16, 40, 78, 0.14);

  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;

  --maxw: 1180px;
  --header-h: 72px;

  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
    "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
img,
svg {
  max-width: 100%;
  display: block;
}
ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
button {
  font-family: inherit;
  cursor: pointer;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 88px 0;
}
.section--soft {
  background: var(--bg-soft);
}
.section--alt {
  background: var(--bg-alt);
}
.section__head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--blue);
  background: rgba(21, 101, 216, 0.08);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section__title {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--navy);
}
.section__sub {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 16px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease,
    background 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn--primary {
  background: linear-gradient(120deg, var(--blue), var(--cyan));
  color: #fff;
  box-shadow: 0 10px 24px rgba(20, 120, 200, 0.28);
}
.btn--primary:hover {
  box-shadow: 0 14px 30px rgba(20, 120, 200, 0.36);
}
.btn--ghost {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.16);
}
.btn--outline {
  background: #fff;
  border-color: var(--line);
  color: var(--navy);
}
.btn--outline:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.btn--light {
  background: #fff;
  color: var(--navy);
  box-shadow: var(--shadow-sm);
}
.btn--light:hover {
  box-shadow: var(--shadow-md);
}

/* ---------- Header / Nav ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background 0.25s ease, box-shadow 0.25s ease,
    backdrop-filter 0.25s ease;
  background: transparent;
}
.header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  box-shadow: 0 4px 20px rgba(16, 40, 78, 0.08);
}
.nav {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: #fff;
  transition: color 0.25s ease;
}
.brand__logo {
  width: 34px;
  height: 34px;
  flex: none;
}
.header.is-scrolled .brand {
  color: var(--navy);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__link {
  position: relative;
  padding: 9px 15px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.86);
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}
.header.is-scrolled .nav__link {
  color: var(--ink-soft);
}
.nav__link:hover {
  color: #fff;
}
.header.is-scrolled .nav__link:hover {
  color: var(--blue);
}
.nav__link.is-active {
  color: #fff;
  font-weight: 700;
}
.header.is-scrolled .nav__link.is-active {
  color: var(--blue);
}
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}
.nav__cta {
  margin-left: 8px;
}
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: none;
  background: transparent;
  align-items: center;
  justify-content: center;
}
.nav__toggle span {
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: 0.25s ease;
}
.header.is-scrolled .nav__toggle span {
  background: var(--navy);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
  background: radial-gradient(
      1200px 600px at 78% 12%,
      rgba(20, 194, 194, 0.22),
      transparent 60%
    ),
    radial-gradient(
      900px 520px at 12% 88%,
      rgba(255, 122, 26, 0.18),
      transparent 60%
    ),
    linear-gradient(160deg, var(--navy) 0%, var(--dark-2) 55%, #0b1f3a 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.04) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 78%);
  opacity: 0.6;
}
.hero__inner {
  position: relative;
  z-index: 2;
  padding: calc(var(--header-h) + 60px) 0 80px;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #cfe3ff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero__eyebrow b {
  color: var(--orange-soft);
}
.hero h1 {
  font-size: clamp(32px, 5.2vw, 56px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.01em;
  max-width: 16em;
}
.hero h1 .hl {
  background: linear-gradient(90deg, var(--cyan), var(--orange-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lead {
  margin-top: 22px;
  max-width: 40em;
  font-size: clamp(15px, 1.6vw, 18px);
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.8;
}
.hero__actions {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero__glow {
  position: absolute;
  right: -120px;
  top: 50%;
  transform: translateY(-50%);
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(20, 194, 194, 0.35),
    rgba(21, 101, 216, 0.08) 45%,
    transparent 70%
  );
  filter: blur(10px);
  z-index: 1;
  pointer-events: none;
}

/* ---------- Stats ---------- */
.stats {
  position: relative;
  z-index: 3;
  margin-top: -46px;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 34px 30px;
}
.stat {
  text-align: center;
  position: relative;
}
.stat + .stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18%;
  height: 64%;
  width: 1px;
  background: var(--line);
}
.stat__num {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  color: var(--navy);
  line-height: 1;
}
.stat__num span {
  color: var(--blue);
}
.stat__label {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ---------- Business dual cards ---------- */
.biz {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.biz__card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 38px 34px 34px;
  color: #fff;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: var(--shadow-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.biz__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.biz__card--light {
  background: radial-gradient(
      700px 380px at 85% 10%,
      rgba(255, 122, 26, 0.5),
      transparent 60%
    ),
    linear-gradient(155deg, #1a2c4d, #0c2340);
}
.biz__card--cloud {
  background: radial-gradient(
      700px 380px at 85% 10%,
      rgba(20, 194, 194, 0.5),
      transparent 60%
    ),
    linear-gradient(155deg, #0d3b6e, #0c2340);
}
.biz__tag {
  position: absolute;
  top: 30px;
  left: 34px;
  font-size: 13px;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
}
.biz__icon {
  position: absolute;
  top: 26px;
  right: 30px;
  width: 56px;
  height: 56px;
  color: rgba(255, 255, 255, 0.9);
}
.biz__card h3 {
  font-size: 25px;
  font-weight: 800;
}
.biz__card p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}
.biz__more {
  margin-top: 18px;
  font-weight: 600;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.biz__more svg {
  transition: transform 0.2s ease;
}
.biz__card:hover .biz__more svg {
  transform: translateX(4px);
}

/* ---------- Features grid ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.feature:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.feature__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(21, 101, 216, 0.12), rgba(20, 194, 194, 0.12));
  color: var(--blue);
  margin-bottom: 18px;
}
.feature h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
}
.feature p {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 15px;
}

/* ---------- Product blocks ---------- */
.product {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.product + .product {
  margin-top: 70px;
}
.product--rev .product__media {
  order: 2;
}
.product__media {
  position: relative;
  border-radius: var(--radius-lg);
  min-height: 340px;
  overflow: hidden;
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: var(--shadow-md);
}
.product__media--light {
  background: linear-gradient(150deg, #ff8a3d, #ff5e3a 55%, #b8341f);
}
.product__media--cloud {
  background: linear-gradient(150deg, #14c2c2, #1565d8 60%, #0c2340);
}
.product__media-label {
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.92;
}
.product__media-label .big {
  font-size: 30px;
  display: block;
  margin-bottom: 8px;
}
.product__media-deco {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.5;
}
.product__body .eyebrow {
  margin-bottom: 12px;
}
.product__body h3 {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 800;
  color: var(--navy);
}
.product__body p {
  margin-top: 14px;
  color: var(--ink-soft);
}
.product__list {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}
.product__list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--ink);
  font-size: 15px;
}
.product__list .tick {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(20, 194, 194, 0.14);
  color: var(--cyan);
  display: grid;
  place-items: center;
  margin-top: 2px;
}
.product__tags {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  font-size: 13px;
  color: var(--ink-soft);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  padding: 6px 14px;
  border-radius: 999px;
}

/* ---------- Cases ---------- */
.cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.case:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.case__cover {
  height: 168px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.06em;
  position: relative;
}
.case__cover--1 { background: linear-gradient(135deg, #1565d8, #14c2c2); }
.case__cover--2 { background: linear-gradient(135deg, #ff8a3d, #ff5e3a); }
.case__cover--3 { background: linear-gradient(135deg, #0c2340, #2f7ff0); }
.case__cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.1) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.5;
}
.case__cover--img { background-size: cover; background-position: center; background-repeat: no-repeat; }
.case__cover__tag { position: relative; z-index: 2; background: rgba(0,0,0,.38); padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: .08em; }
.news__hero { height: 220px; background-size: cover; background-position: center; border-radius: 12px; margin-bottom: 22px; }
/* 富文本正文排版（后台 Quill 录入的 HTML） */
.article__content { font-size: 16.5px; line-height: 1.95; color: var(--ink); word-break: break-word; }
.article__content p { margin: 0 0 18px; }
.article__content h2 { font-size: 24px; font-weight: 800; color: var(--navy); margin: 34px 0 14px; padding-left: 14px; border-left: 4px solid var(--orange); }
.article__content h3 { font-size: 20px; font-weight: 700; color: var(--navy); margin: 28px 0 12px; }
.article__content ul, .article__content ol { margin: 0 0 18px; padding-left: 24px; }
.article__content li { margin: 6px 0; }
.article__content blockquote { margin: 0 0 18px; padding: 12px 18px; background: var(--bg-soft); border-left: 4px solid var(--blue); border-radius: 0 8px 8px 0; color: var(--ink-soft); }
.article__content a { color: var(--blue); text-decoration: underline; }
.article__content img { max-width: 100%; height: auto; border-radius: 10px; margin: 8px 0 18px; display: block; }
.article__content strong { color: var(--navy); }
.article__content hr { border: none; border-top: 1px solid var(--line); margin: 22px 0; }
.case__body {
  padding: 22px 24px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.case__cat {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--blue);
}
.case__body h3 {
  margin-top: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
}
.case__body p {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 14.5px;
  flex: 1;
}
.case__meta {
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-faint);
  display: flex;
  gap: 16px;
}

/* ---------- News ---------- */
.news {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news__item {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.news__item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.news__date {
  padding: 18px 22px 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
}
.news__item h3 {
  padding: 10px 22px 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.5;
}
.news__item p {
  padding: 10px 22px 22px;
  color: var(--ink-soft);
  font-size: 14.5px;
}
.news__more {
  text-align: center;
  margin-top: 40px;
}

/* ---------- CTA band ---------- */
.cta {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 56px 48px;
  color: #fff;
  background: radial-gradient(700px 320px at 88% 20%, rgba(20,194,194,.4), transparent 60%),
    linear-gradient(140deg, var(--navy), var(--dark-2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
}
.cta p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.8);
}

/* ---------- Contact ---------- */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact__info {
  display: grid;
  gap: 18px;
}
.info-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.info-card__icon {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(21, 101, 216, 0.1);
  color: var(--blue);
}
.info-card h4 {
  font-size: 15px;
  color: var(--ink-soft);
  font-weight: 600;
}
.info-card p {
  margin-top: 4px;
  color: var(--navy);
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1.6;
}
.form {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field {
  margin-bottom: 16px;
}
.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 7px;
}
.field input,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg-soft);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(21, 101, 216, 0.12);
}
.field textarea {
  min-height: 120px;
  resize: vertical;
}
.form__note {
  font-size: 13px;
  color: var(--ink-faint);
  margin-top: 4px;
}
.form__msg {
  display: none;
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
}
.form__msg.is-ok {
  display: block;
  background: rgba(20, 194, 194, 0.12);
  color: #0a7d7d;
}
.form__msg.is-err {
  display: block;
  background: rgba(255, 122, 26, 0.12);
  color: #c2540a;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.72);
  padding: 56px 0 26px;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 34px;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  font-size: 19px;
  color: #fff;
  margin-bottom: 16px;
}
.footer__about {
  font-size: 14.5px;
  line-height: 1.8;
  max-width: 30em;
}
.footer h5 {
  color: #fff;
  font-size: 15px;
  margin: 0 0 16px;
  font-weight: 700;
}
.footer__links li {
  margin-bottom: 11px;
}
.footer__links a {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.66);
  transition: color 0.18s ease;
}
.footer__links a:hover {
  color: var(--cyan);
}
.footer__bottom {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- Page hero (inner pages) ---------- */
.pagehero {
  position: relative;
  padding: calc(var(--header-h) + 70px) 0 64px;
  color: #fff;
  background: radial-gradient(800px 420px at 80% 0%, rgba(20,194,194,.22), transparent 60%),
    linear-gradient(150deg, var(--navy), var(--dark-2));
  overflow: hidden;
}
.pagehero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 70% 30%, #000 20%, transparent 75%);
}
.pagehero__inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
}
.pagehero .eyebrow {
  background: rgba(255, 255, 255, 0.12);
  color: #cfe3ff;
}
.pagehero h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  margin-top: 14px;
}
.pagehero p {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
}
.breadcrumb {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 14px;
}
.breadcrumb a:hover {
  color: var(--cyan);
}

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding-left: 28px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--cyan), var(--blue));
}
.tl {
  position: relative;
  padding: 0 0 32px 30px;
}
.tl::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--blue);
  box-shadow: 0 0 0 4px rgba(21, 101, 216, 0.12);
}
.tl__year {
  font-weight: 800;
  color: var(--blue);
  font-size: 17px;
}
.tl h4 {
  margin-top: 4px;
  font-size: 17px;
  color: var(--navy);
}
.tl p {
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: 15px;
}

/* ---------- Honors ---------- */
.honors {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.honor {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 26px 22px;
  text-align: center;
}
.honor__icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 14px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(21,101,216,.12), rgba(20,194,194,.12));
  color: var(--blue);
}
.honor h4 {
  font-size: 16px;
  color: var(--navy);
}
.honor p {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--ink-soft);
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html { scroll-behavior: auto; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .stats__grid {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 26px;
  }
  .stat:nth-child(4)::before,
  .stat:nth-child(5)::before { display: none; }
  .features,
  .cases,
  .news,
  .honors {
    grid-template-columns: repeat(2, 1fr);
  }
  .product,
  .biz,
  .contact {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .product--rev .product__media { order: 0; }
  .footer__top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .section { padding: 60px 0; }
  .nav__links {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    padding: 10px 16px 20px;
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: 0.25s ease;
  }
  .nav__links.is-open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }
  .nav__link {
    color: var(--ink-soft) !important;
    padding: 13px 12px;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav__link.is-active { color: var(--blue) !important; }
  .nav__link.is-active::after { display: none; }
  .nav__cta { margin: 12px 0 0; }
  .nav__cta .btn { width: 100%; }
  .nav__toggle { display: flex; }
  .header.is-scrolled .nav__toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .header.is-scrolled .nav__toggle.is-open span:nth-child(2) {
    opacity: 0;
  }
  .header.is-scrolled .nav__toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px 10px;
    padding: 26px 18px;
  }
  .stat + .stat::before { display: none; }
  .features,
  .cases,
  .news,
  .honors {
    grid-template-columns: 1fr;
  }
  .footer__top {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .form__row { grid-template-columns: 1fr; }
  .cta { padding: 38px 26px; }
  .hero__glow { display: none; }
}

@media (max-width: 420px) {
  .container { padding: 0 18px; }
  .nav { padding: 0 18px; }
}

/* ===== 新增：简介栏 / 使命愿景 / 数字单位 ===== */
.stat__num .unit { font-size: .5em; font-weight: 800; margin-left: 2px; }
.stat__num .plus { font-size: .62em; font-weight: 800; margin-left: 1px; color: var(--orange); }

.introband { background: linear-gradient(180deg,#f4f8fd,#eef4fb); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.introband__inner { max-width: 1000px; margin: 0 auto; text-align: center; padding: 50px 20px; }
.introband .eyebrow { display: block; margin-bottom: 16px; }
.introband p { font-size: 17px; line-height: 2; color: var(--ink); margin: 0; text-align: justify; }

.mv { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.mv__card { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--orange); border-radius: var(--radius); padding: 30px 32px; box-shadow: var(--shadow-sm); }
.mv__tag { display: inline-block; font-size: 13px; font-weight: 800; letter-spacing: .05em; color: var(--blue); background: rgba(21,101,216,.08); padding: 4px 12px; border-radius: 999px; margin-bottom: 14px; }
.mv__card p { color: var(--ink); line-height: 1.95; font-size: 15.5px; }

@media (max-width: 760px) {
  .mv { grid-template-columns: 1fr; }
  .introband p { font-size: 16px; }
}