/* ==========================================================================
   云慧星 · 官网样式
   配色取自企业 LOGO：深海军蓝 → 品牌蓝 → 青蓝 → 银灰
   ========================================================================== */

:root {
  --navy-950: #04091a;
  --navy-900: #061026;
  --navy-850: #08152f;
  --navy-800: #0a1b3d;
  --navy-700: #0e2450;
  --brand-700: #102c78;
  --brand-600: #163a94;
  --brand-500: #1e7fc0;
  --cyan-500: #1f9fd6;
  --cyan-400: #29abe2;
  --cyan-300: #5fd3e8;
  --silver: #c6cdd6;

  --text: #eaf0fa;
  --text-2: #a9b8d0;
  --text-3: #6f819e;
  --line: rgba(140, 178, 224, 0.14);
  --line-strong: rgba(140, 178, 224, 0.26);
  --glass: rgba(148, 184, 232, 0.045);

  --paper: #f2f5fa;
  --ink: #0a1730;
  --ink-2: #3d5372;

  --radius-lg: 26px;
  --radius: 18px;
  --radius-sm: 12px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC",
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--navy-950);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(41, 171, 226, 0.35); color: #fff; }

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

/* 滚动进度 */
.progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--brand-600), var(--cyan-400), var(--cyan-300));
  z-index: 120;
  transition: width 0.12s linear;
}

.wrap {
  width: min(1220px, calc(100% - 48px));
  margin-inline: auto;
}

/* ============================ 导航 ============================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.35s var(--ease), backdrop-filter 0.35s, border-color 0.35s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(4, 9, 26, 0.82);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav__inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 28px;
  height: 82px;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}
.nav__logo img {
  width: 46px;
  height: 46px;
  filter: drop-shadow(0 4px 14px rgba(41, 171, 226, 0.45)) brightness(1.06);
}
.nav__logotext { line-height: 1.2; }
.nav__logotext strong {
  display: block;
  font-size: 1.02rem;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.nav__logotext span {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: var(--text-3);
  font-family: var(--font-en);
  text-transform: uppercase;
}
.nav__menu {
  display: flex;
  gap: 6px;
  margin-left: auto;
}
.nav__menu a {
  position: relative;
  padding: 8px 14px;
  font-size: 0.9rem;
  color: var(--text-2);
  border-radius: 999px;
  transition: color 0.25s, background 0.25s;
}
.nav__menu a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan-400), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav__menu a:hover { color: #fff; }
.nav__menu a:hover::after { transform: scaleX(1); }

.nav__cta {
  flex: 0 0 auto;
  padding: 10px 20px;
  font-size: 0.86rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(120deg, rgba(41, 171, 226, 0.16), rgba(16, 44, 120, 0.35));
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.nav__cta:hover {
  border-color: var(--cyan-400);
  transform: translateY(-1px);
  box-shadow: 0 10px 26px -12px rgba(41, 171, 226, 0.7);
}

/* 移动端抽屉导航（桌面隐藏） */
.nav__burger, .nav__menu-cta { display: none; }

/* ============================ 首屏 ============================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 100px 0 38px;
  overflow: hidden;
  background:
    radial-gradient(1100px 720px at 78% 12%, rgba(31, 159, 214, 0.20), transparent 62%),
    radial-gradient(820px 620px at 8% 88%, rgba(22, 58, 148, 0.34), transparent 66%),
    linear-gradient(178deg, var(--navy-950) 0%, var(--navy-900) 46%, #071533 100%);
}
#starfield {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.85;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(140, 178, 224, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 178, 224, 0.055) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: radial-gradient(circle at 50% 42%, #000 8%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 42%, #000 8%, transparent 72%);
}
.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: 56px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(41, 171, 226, 0.07);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--cyan-300);
  font-family: var(--font-en);
}
.eyebrow i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(41, 171, 226, 0.18);
  animation: pulse 2.6s infinite;
}
@keyframes pulse {
  50% { box-shadow: 0 0 0 9px rgba(41, 171, 226, 0); }
}

.hero h1 {
  margin: 24px 0 20px;
  font-size: clamp(2.5rem, 4.3vw, 3.7rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  font-weight: 600;
}
.hero h1 .grad {
  background: linear-gradient(102deg, #ffffff 6%, var(--cyan-300) 48%, var(--brand-500) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lead {
  max-width: 33em;
  color: var(--text-2);
  font-size: 1.03rem;
}
.hero__accent {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 26px;
  font-size: 0.86rem;
  color: var(--text-3);
  font-family: var(--font-en);
  letter-spacing: 0.14em;
}
.hero__accent span { position: relative; padding-left: 18px; }
.hero__accent span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  transform: rotate(45deg);
  background: var(--cyan-400);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 0.94rem;
  letter-spacing: 0.02em;
  transition: transform 0.3s var(--ease), box-shadow 0.3s, border-color 0.3s, background 0.3s;
}
.btn svg { width: 16px; height: 16px; }
.btn--primary {
  background: linear-gradient(102deg, var(--brand-600), var(--cyan-500) 86%);
  color: #fff;
  box-shadow: 0 18px 44px -20px rgba(41, 171, 226, 0.9);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 54px -20px rgba(41, 171, 226, 1);
}
.btn--ghost {
  border: 1px solid var(--line-strong);
  color: var(--text-2);
}
.btn--ghost:hover {
  color: #fff;
  border-color: var(--cyan-400);
  transform: translateY(-2px);
}

/* 首屏右侧视觉 */
.hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  max-width: 470px;
  margin-left: auto;
}
.hero__visual::before {
  content: "";
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(41, 171, 226, 0.26), transparent 66%);
  filter: blur(26px);
}
.hero__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(95, 211, 232, 0.22);
  animation: spin 44s linear infinite;
}
.hero__ring::before,
.hero__ring::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}
.hero__ring::before {
  inset: 11%;
  border: 1px dashed rgba(140, 178, 224, 0.22);
}
.hero__ring::after {
  top: -4px;
  left: 50%;
  width: 8px;
  height: 8px;
  margin-left: -4px;
  background: var(--cyan-300);
  box-shadow: 0 0 18px 4px rgba(95, 211, 232, 0.8);
}
@keyframes spin { to { transform: rotate(360deg); } }
.hero__logo {
  position: relative;
  width: 78%;
  filter: drop-shadow(0 26px 60px rgba(9, 34, 82, 0.85));
  animation: float 7s ease-in-out infinite;
}
@keyframes float {
  50% { transform: translateY(-14px); }
}

/* 首屏底部指标 */
.stats {
  position: relative;
  z-index: 2;
  margin-top: clamp(26px, 4vh, 58px);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  padding-top: 26px;
  gap: 20px;
}
.stat__num {
  font-size: clamp(1.5rem, 2.4vw, 2.05rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #fff, #9fd7ee);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
}
.stat__num small { font-size: 0.5em; margin-left: 3px; }
.stat__label {
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
}

/* ============================ 通用区块 ============================ */
.section {
  position: relative;
  padding: 120px 0;
  scroll-margin-top: 74px;
}
.section--alt {
  background: linear-gradient(180deg, var(--navy-900), var(--navy-950));
}
.section--light {
  background: var(--paper);
  color: var(--ink);
}
.sechead {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 62px;
}
.sechead__no {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  color: var(--cyan-400);
}
.sechead__no::before {
  content: "";
  width: 42px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan-400), transparent);
}
.sechead h2 {
  margin-top: 16px;
  font-size: clamp(1.7rem, 3.1vw, 2.55rem);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.sechead__lead {
  color: var(--text-2);
  font-size: 0.96rem;
}
.section--light .sechead__lead { color: var(--ink-2); }
.section--light .sechead__no { color: var(--brand-600); }
.section--light .sechead__no::before {
  background: linear-gradient(90deg, var(--brand-600), transparent);
}

/* 品牌陈述 */
/* 园区影像：给纯文字的品牌区一个实景锚点 */
.about-figure {
  position: relative;
  margin: 40px 0 56px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--navy-900);
}
.about-figure img {
  display: block;
  width: 100%;
  height: clamp(230px, 33vw, 430px);
  object-fit: cover;
  /* 日照实景：保持通透，只做轻微提亮 */
  filter: saturate(1.05) brightness(1.04);
  transition: filter 0.7s var(--ease), transform 1.2s var(--ease);
}
.about-figure:hover img {
  filter: saturate(1.1) brightness(1.08);
  transform: scale(1.025);
}
.about-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  /* 只在底部做出文字承托，上半幅保留完整日照层次 */
  background:
    linear-gradient(180deg, rgba(4, 9, 26, 0) 40%, rgba(4, 9, 26, 0.48) 70%, rgba(4, 9, 26, 0.9)),
    linear-gradient(90deg, rgba(4, 9, 26, 0.4), transparent 46%);
  pointer-events: none;
}
.about-figure figcaption {
  position: absolute;
  left: clamp(20px, 3.4vw, 42px);
  bottom: clamp(18px, 2.6vw, 32px);
  z-index: 1;
  display: grid;
  gap: 9px;
  max-width: 34em;
}
.about-figure figcaption span {
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--cyan-300);
}
.about-figure figcaption strong {
  font-size: clamp(0.98rem, 1.5vw, 1.2rem);
  font-weight: 500;
  line-height: 1.6;
  color: #f7fbff;
  text-shadow: 0 2px 16px rgba(4, 9, 26, 0.8);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 64px;
  align-items: start;
}
.intro__quote {
  position: sticky;
  top: 108px;
  font-size: clamp(1.18rem, 1.9vw, 1.5rem);
  line-height: 1.85;
  color: #dbe6f6;
}
.intro__quote em {
  font-style: normal;
  color: var(--cyan-300);
}
.intro__body { color: var(--text-2); font-size: 0.95rem; }
.intro__body p + p { margin-top: 18px; }
.kw {
  display: grid;
  gap: 1px;
  margin-top: 34px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}
.kw div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 20px;
  background: var(--navy-900);
  font-size: 0.88rem;
}
.kw span { color: var(--text-3); font-family: var(--font-en); letter-spacing: 0.06em; }
.kw b { font-weight: 500; color: #d7e3f4; }

/* ============================ 业务矩阵 ============================ */
.biz {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  position: relative;
  padding: 32px 30px 30px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(420px 220px at var(--mx, 50%) var(--my, 0%), rgba(41, 171, 226, 0.13), transparent 70%),
    var(--glass);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s, box-shadow 0.45s;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(95, 211, 232, 0.6), transparent 42%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.45s;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-7px);
  border-color: transparent;
  box-shadow: 0 34px 70px -40px rgba(41, 171, 226, 0.85);
}
.card:hover::after { opacity: 1; }
.card__no {
  font-family: var(--font-en);
  font-size: 0.74rem;
  letter-spacing: 0.24em;
  color: var(--cyan-400);
}
.card__icon {
  width: 46px;
  height: 46px;
  margin: 18px 0 20px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(150deg, rgba(41, 171, 226, 0.2), rgba(16, 44, 120, 0.16));
  color: var(--cyan-300);
}
.card__icon svg { width: 22px; height: 22px; }
.card h3 {
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.card p {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.8;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.tag {
  padding: 5px 11px;
  font-size: 0.74rem;
  border-radius: 6px;
  color: #b8cbe4;
  background: rgba(140, 178, 224, 0.08);
  border: 1px solid rgba(140, 178, 224, 0.12);
  letter-spacing: 0.02em;
}

/* ============================ 能力底座 ============================ */
.cap {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 64px;
}
.cap__aside { position: sticky; top: 120px; align-self: start; }
.cap__aside h2 {
  margin: 16px 0 20px;
  font-size: clamp(1.6rem, 2.8vw, 2.3rem);
  line-height: 1.32;
  font-weight: 600;
}
.cap__aside p { color: var(--text-2); font-size: 0.94rem; }
.cap__marks {
  display: flex;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}
.cap__marks img {
  height: 52px;
  width: 52px;
  opacity: 0.92;
}
.cap__list {
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--line);
}
.cap__item {
  position: relative;
  padding: 24px 0 24px 34px;
  border-bottom: 1px solid rgba(140, 178, 224, 0.08);
}
.cap__item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 34px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--navy-900);
  border: 1px solid var(--line-strong);
  transition: background 0.35s, box-shadow 0.35s, border-color 0.35s;
}
.cap__item:hover::before {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
  box-shadow: 0 0 0 5px rgba(41, 171, 226, 0.14);
}
.cap__item h3 {
  font-size: 1.04rem;
  font-weight: 600;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.cap__item h3 span {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--text-3);
}
.cap__item p {
  margin-top: 8px;
  font-size: 0.89rem;
  color: var(--text-2);
}

/* ============================ 行业场景 ============================ */
.scenes {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.scene {
  position: relative;
  padding: 0;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(148, 184, 232, 0.055), transparent);
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s, background 0.4s;
}
.scene__media {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--navy-900);
}
.scene__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 日照实景：不压暗，只在底部与深色卡片做一点融合 */
  filter: saturate(1.04) brightness(1.03);
  transition: transform 0.9s var(--ease), filter 0.6s var(--ease);
}
.scene__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 9, 26, 0) 58%, rgba(4, 9, 26, 0.34));
  pointer-events: none;
}
.scene:hover .scene__media img {
  transform: scale(1.06);
  filter: saturate(1.08) brightness(1.08);
}
.scene__body { padding: 20px 20px 24px; }
.scene:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(41, 171, 226, 0.12), transparent);
}
.scene__idx {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--cyan-400);
}
.scene h3 {
  margin: 14px 0 10px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
}
.scene p { font-size: 0.82rem; color: var(--text-3); line-height: 1.75; }

/* ============================ 服务流程 ============================ */
.flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  counter-reset: flow;
}
.flow__step {
  position: relative;
  padding: 0 18px 0 0;
}
.flow__step::before {
  content: "";
  position: absolute;
  top: 17px;
  left: 34px;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--line-strong), rgba(140, 178, 224, 0.05));
}
.flow__step:last-child::before { display: none; }
.flow__dot {
  position: relative;
  z-index: 1;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--navy-900);
  font-family: var(--font-en);
  font-size: 0.78rem;
  color: var(--cyan-300);
  transition: border-color 0.3s, box-shadow 0.3s, color 0.3s;
}
.flow__step:hover .flow__dot {
  border-color: var(--cyan-400);
  color: #fff;
  box-shadow: 0 0 0 6px rgba(41, 171, 226, 0.1);
}
.flow__step h3 {
  margin: 20px 0 8px;
  font-size: 0.96rem;
  font-weight: 600;
}
.flow__step p { font-size: 0.8rem; color: var(--text-3); line-height: 1.7; }

/* ============================ 服务承诺（浅色带） ============================ */
.sla {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.sla__card {
  padding: 30px 28px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid #e3e9f2;
  box-shadow: 0 20px 44px -38px rgba(10, 23, 48, 0.55);
  transition: transform 0.4s var(--ease), box-shadow 0.4s;
}
.sla__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 30px 54px -36px rgba(10, 23, 48, 0.5);
}
.sla__num {
  font-family: var(--font-en);
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 600;
  color: var(--brand-600);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.sla__num small { font-size: 0.5em; margin-left: 4px; color: var(--ink-2); }
.sla__card h3 {
  margin: 10px 0 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
}
.sla__card p { font-size: 0.86rem; color: var(--ink-2); line-height: 1.75; }

/* ============================ 合作生态 ============================ */
.partners {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.partner {
  display: flex;
  gap: 18px;
  padding: 26px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--glass);
  transition: border-color 0.35s, background 0.35s, transform 0.35s var(--ease);
}
.partner:hover {
  border-color: var(--line-strong);
  background: rgba(41, 171, 226, 0.07);
  transform: translateY(-4px);
}
.partner__badge {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: rgba(41, 171, 226, 0.1);
  color: var(--cyan-300);
  font-family: var(--font-en);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}
.partner h3 {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
}
.partner p {
  margin-top: 6px;
  font-size: 0.82rem;
  color: var(--text-3);
  line-height: 1.7;
}
.note {
  margin-top: 26px;
  font-size: 0.78rem;
  color: var(--text-3);
  letter-spacing: 0.02em;
}

/* ============================ 联系 ============================ */
.contact {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(760px 420px at 82% 18%, rgba(31, 159, 214, 0.2), transparent 66%),
    linear-gradient(180deg, var(--navy-950), #061027);
}
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  gap: 64px;
  align-items: center;
}
.contact h2 {
  margin: 18px 0 20px;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.3;
  font-weight: 600;
}
.contact__lead { color: var(--text-2); font-size: 0.96rem; max-width: 32em; }
.info {
  margin-top: 42px;
  display: grid;
  gap: 1px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}
.info div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  padding: 18px 22px;
  background: rgba(6, 16, 38, 0.92);
  font-size: 0.9rem;
}
.info dt { color: var(--text-3); font-size: 0.84rem; }
.info dd { color: #dbe6f6; }
.contact__panel {
  position: relative;
  padding: 42px 38px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, rgba(22, 58, 148, 0.28), rgba(6, 16, 38, 0.85));
  box-shadow: 0 40px 90px -60px rgba(31, 159, 214, 0.9);
}
.contact__panel h3 { font-size: 1.06rem; font-weight: 600; }
.contact__panel p {
  margin-top: 12px;
  font-size: 0.88rem;
  color: var(--text-2);
}
.contact__panel .btn { margin-top: 30px; width: 100%; justify-content: center; }
.contact__logo {
  width: 64px;
  margin-bottom: 22px;
  opacity: 0.95;
}

/* ============================ 页脚 ============================ */
.footer {
  padding: 54px 0 40px;
  border-top: 1px solid var(--line);
  background: var(--navy-950);
}
.footer__grid {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer__brand img { width: 36px; height: 36px; opacity: 0.9; }
.footer__brand strong { display: block; font-size: 0.95rem; font-weight: 600; }
.footer__brand span {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: var(--text-3);
  font-family: var(--font-en);
}
.footer__nav {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-3);
}
.footer__nav a:hover { color: var(--cyan-300); }
.footer__bottom {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid rgba(140, 178, 224, 0.08);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: #566b8a;
}

/* ============================ 入场动效 ============================ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* ============================ 响应式 ============================ */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { max-width: 340px; margin: 0 auto; }
  .stats { grid-template-columns: repeat(3, 1fr); row-gap: 26px; }
  .biz { grid-template-columns: repeat(2, 1fr); }
  .scenes { grid-template-columns: repeat(3, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); row-gap: 34px; }
  .flow__step::before { display: none; }
  .sla { grid-template-columns: repeat(2, 1fr); }
  .partners { grid-template-columns: repeat(2, 1fr); }
  .intro, .cap, .contact__grid, .sechead { grid-template-columns: 1fr; gap: 34px; }
  .intro__quote { position: static; }
  .cap__aside { position: static; }
  .cap__list { border-left: none; border-top: 1px solid var(--line); }
  .cap__item { padding-left: 0; }
  .cap__item::before { display: none; }
}
@media (max-width: 860px) {
  /* backdrop-filter 会创建包含块并干扰抽屉层叠，移动端改用不透明底 */
  .nav.is-scrolled {
    backdrop-filter: none;
    background: rgba(4, 9, 26, 0.94);
  }

  /* 抽屉式导航 */
  .nav__cta { display: none; }
  .nav__burger {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    margin-left: auto;
    padding: 0 10px;
    border: 1px solid var(--line-strong);
    border-radius: 13px;
    background: rgba(148, 184, 232, 0.06);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }
  .nav__burger span {
    display: block;
    width: 100%;
    height: 1.6px;
    border-radius: 2px;
    background: var(--silver);
    transition: transform 0.3s var(--ease), opacity 0.2s, background 0.2s;
  }
  .nav.is-open .nav__burger span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
  .nav.is-open .nav__burger span:nth-child(2) { opacity: 0; }
  .nav.is-open .nav__burger span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

  .nav__menu {
    position: fixed;
    top: 82px;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 18px 24px 32px;
    overflow-y: auto;
    background: #050b1c;
    border-top: 1px solid var(--line);
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.9);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.42s var(--ease), opacity 0.28s;
    z-index: 1;
  }
  .nav.is-open .nav__menu {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav__menu a {
    padding: 15px 2px;
    font-size: 1rem;
    border-radius: 0;
    border-bottom: 1px solid var(--line);
  }
  .nav__menu a::after { display: none; }
  .nav__menu-cta {
    display: block;
    margin-top: auto;
    margin-bottom: 10px;
    padding: 16px 2px;
    text-align: center;
    border: 1px solid var(--line-strong) !important;
    border-radius: 999px !important;
    background: linear-gradient(120deg, rgba(41, 171, 226, 0.2), rgba(16, 44, 120, 0.4));
    color: #fff !important;
  }

  .section { padding: 84px 0; }
  .hero { padding-top: 110px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .biz, .scenes, .sla, .partners { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .info div { grid-template-columns: 1fr; gap: 4px; }
}
@media (max-width: 560px) {
  .wrap { width: calc(100% - 32px); }
  .hero h1 { font-size: 2.1rem; }
  .hero__actions .btn { flex: 1 1 0; justify-content: center; padding-inline: 14px; font-size: 0.88rem; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats > div:last-child { grid-column: 1 / -1; }
  .nav__menu { padding: 14px 18px 28px; }
  .footer__grid { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
  .reveal { opacity: 1; transform: none; }
}