/* ============= 基础重置 ============= */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family:
    "PingFang SC",
    "Microsoft YaHei",
    "Hiragino Sans GB",
    "Source Han Sans CN",
    "Noto Sans CJK SC",
    "HarmonyOS Sans SC",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #1a2332;
  background: #fafbfc;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
ul,
ol {
  list-style: none;
}

/* ============= 设计变量 ============= */
:root {
  --c-bg: #fafbfc;
  --c-paper: #ffffff;
  --c-ink: #0a1f2e;
  --c-ink-2: #1a2332;
  --c-mute: #5b6675;
  --c-line: #e6eaef;
  --c-bing: #008373; /* 必应青 */
  --c-bing-dark: #006659;
  --c-bing-light: #e6f5f2;
  --c-gold: #c8a45d; /* 暖金 */
  --c-gold-light: #f5ecd9;
  --grad-hero: radial-gradient(
    ellipse at 20% 0%,
    #0d3b48 0%,
    #051a24 50%,
    #020c12 100%
  );
  --shadow-sm: 0 2px 8px rgba(10, 31, 46, 0.05);
  --shadow-md: 0 8px 32px rgba(10, 31, 46, 0.08);
  --shadow-lg: 0 24px 60px rgba(10, 31, 46, 0.12);
  --radius: 14px;
  --radius-lg: 22px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============= 通用容器 ============= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 120px 0;
  position: relative;
}
.section__head {
  max-width: 760px;
  margin: 0 auto 64px;
  text-align: center;
}
.section__head--light {
  color: #fff;
}
.section__kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--c-bing);
  text-transform: uppercase;
  margin-bottom: 18px;
  padding: 6px 14px;
  background: var(--c-bing-light);
  border-radius: 100px;
}
.section__head--light .section__kicker {
  background: rgba(0, 131, 115, 0.18);
  color: #5ee0c8;
}
.section__title {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.section__head--light .section__title {
  color: #fff;
}
.section__sub {
  font-size: 17px;
  color: var(--c-mute);
  line-height: 1.8;
}
.section__head--light .section__sub {
  color: rgba(255, 255, 255, 0.7);
}

/* ============= Logo ============= */
.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-weight: 700;
  color: var(--c-ink);
  font-size: 22px;
  letter-spacing: -0.01em;
}
.logo__name {
  position: relative;
  display: inline-flex;
  align-items: flex-start;
}
.logo__r {
  font-size: 11px;
  color: var(--c-bing);
  margin-left: 3px;
  margin-top: 2px;
  font-weight: 600;
  line-height: 1;
}
.logo__sep {
  color: var(--c-line);
  font-weight: 300;
  font-size: 20px;
}
.logo__brand {
  font-weight: 500;
  font-size: 18px;
  color: var(--c-ink-2);
}
.logo--light {
  color: #fff;
}
.logo--light .logo__name {
  color: #fff;
}
.logo--light .logo__sep {
  color: rgba(255, 255, 255, 0.3);
}
.logo--light .logo__brand {
  color: rgba(255, 255, 255, 0.85);
}

/* 导航栏 Logo：在深色 Hero 背景上使用浅色 + 加大字号 */
.nav .logo {
  color: #fff;
  font-size: 24px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
.nav .logo__name { color: #fff; }
.nav .logo__r { color: #5ee0c8; font-size: 12px; }
.nav .logo__sep { color: rgba(255, 255, 255, 0.4); font-size: 22px; }
.nav .logo__brand {
  color: rgba(255, 255, 255, 0.92);
  font-size: 19px;
  font-weight: 600;
}

/* ============= 首屏 Hero ============= */
.hero {
  position: relative;
  min-height: 100vh;
  color: #fff;
  overflow: hidden;
  background: var(--grad-hero);
  display: flex;
  flex-direction: column;
  padding-bottom: 60px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.hero__grid {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 131, 115, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 131, 115, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}

/* ============= 导航 ============= */
.nav {
  position: relative;
  z-index: 10;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(5, 20, 28, 0.4);
}
.nav__wrap {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.nav__list a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  transition: all 0.25s var(--ease);
  font-weight: 500;
}
.nav__list a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.nav__cta {
  margin-left: 8px;
}
.nav__cta a {
  background: var(--c-bing);
  color: #fff !important;
  padding: 10px 20px !important;
  font-weight: 600;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0, 131, 115, 0.4);
}
.nav__cta a:hover {
  background: var(--c-bing-dark);
  transform: translateY(-1px);
}
.nav__btn {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav__btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  transition: 0.3s;
}
.nav__btn[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__btn[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__btn[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============= Hero 内容 ============= */
.hero__inner {
  position: relative;
  z-index: 5;
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 32px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero__tag {
  display: inline-block;
  align-self: flex-start;
  padding: 8px 18px;
  background: rgba(0, 131, 115, 0.15);
  color: #5ee0c8;
  font-size: 13px;
  border: 1px solid rgba(94, 224, 200, 0.25);
  border-radius: 100px;
  margin-bottom: 32px;
  letter-spacing: 0.05em;
  animation: fadeUp 0.8s var(--ease) 0.1s backwards;
}
.hero__title {
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
  max-width: 900px;
  animation: fadeUp 0.9s var(--ease) 0.2s backwards;
}
.hero__title--accent {
  background: linear-gradient(135deg, #5ee0c8 0%, #c8a45d 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__desc {
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.78);
  max-width: 680px;
  margin-bottom: 44px;
  animation: fadeUp 1s var(--ease) 0.3s backwards;
}
.hero__desc strong {
  color: #fff;
  font-weight: 600;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 80px;
  animation: fadeUp 1s var(--ease) 0.4s backwards;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  transition: all 0.3s var(--ease);
  cursor: pointer;
  border: 1.5px solid transparent;
}
.btn--primary {
  background: var(--c-bing);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 131, 115, 0.4);
}
.btn--primary:hover {
  background: var(--c-bing-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 131, 115, 0.5);
}
.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero__badges {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  max-width: 780px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  animation: fadeUp 1s var(--ease) 0.5s backwards;
}
.hero__badges li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}
.hero__badges strong {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  font-family:
    "Manrope",
    "Inter",
    -apple-system,
    sans-serif;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.hero__scroll {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
  animation: scrollHint 2.4s var(--ease) infinite;
}
.hero__scroll::after {
  content: "";
  display: block;
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
  margin: 10px auto 0;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes scrollHint {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
    opacity: 0.5;
  }
  50% {
    transform: translateX(-50%) translateY(8px);
    opacity: 1;
  }
}

/* ============= Why ============= */
.section--why {
  background: var(--c-paper);
}
.why__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.why__card {
  padding: 36px 32px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  transition: all 0.4s var(--ease);
}
.why__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-bing);
}
.why__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bing-light);
  border-radius: 14px;
  font-size: 28px;
  margin-bottom: 22px;
}
.why__card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 10px;
}
.why__card p {
  font-size: 15px;
  color: var(--c-mute);
  line-height: 1.75;
}

/* ============= Service ============= */
.section--service {
  background: #f4f6f8;
}
.service__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service__card {
  position: relative;
  padding: 40px 32px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  transition: all 0.4s var(--ease);
  overflow: hidden;
}
.service__card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c-bing-light), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.service__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-bing);
}
.service__card:hover::before {
  opacity: 1;
}
.service__num {
  position: relative;
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-bing);
  font-family: "Manrope", sans-serif;
  letter-spacing: 0.15em;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--c-line);
}
.service__card h3 {
  position: relative;
  font-size: 21px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.service__card > p {
  position: relative;
  font-size: 15px;
  color: var(--c-mute);
  line-height: 1.75;
  margin-bottom: 20px;
}
.service__list {
  position: relative;
}
.service__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--c-ink-2);
  line-height: 1.85;
}
.service__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 12px;
  height: 2px;
  background: var(--c-bing);
  border-radius: 1px;
}

/* ============= Process ============= */
.section--process {
  background: #fff;
  position: relative;
  overflow: hidden;
}
.section--process::before {
  content: "";
  position: absolute;
  top: 0;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--c-bing-light), transparent 70%);
  border-radius: 50%;
  opacity: 0.4;
  pointer-events: none;
}
.process__list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
}
.process__item {
  position: relative;
  padding: 28px 22px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: all 0.3s var(--ease);
}
.process__item:hover {
  border-color: var(--c-bing);
  box-shadow: var(--shadow-sm);
}
.process__step {
  font-size: 11px;
  font-weight: 700;
  color: var(--c-bing);
  letter-spacing: 0.2em;
  margin-bottom: 16px;
  font-family: "Manrope", sans-serif;
}
.process__item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 8px;
}
.process__item p {
  font-size: 13px;
  color: var(--c-mute);
  line-height: 1.7;
  margin-bottom: 14px;
}
.process__time {
  display: inline-block;
  padding: 4px 10px;
  background: var(--c-gold-light);
  color: #8a6d2c;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
}

/* ============= Industry ============= */
.section--industry {
  background: #f4f6f8;
}
.industry__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.industry__card {
  display: block;
  padding: 34px 28px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--c-line);
  transition: all 0.3s var(--ease);
}
.industry__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-bing);
  background: linear-gradient(180deg, #fff, #f9fffe);
}
.industry__icon {
  font-size: 32px;
  margin-bottom: 16px;
  display: block;
}
.industry__card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 8px;
}
.industry__card p {
  font-size: 14px;
  color: var(--c-mute);
  line-height: 1.7;
}

/* ============= Data ============= */
.section--data {
  background: linear-gradient(135deg, #062028 0%, #0a3340 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.section--data::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background:
    radial-gradient(
      circle at 30% 50%,
      rgba(0, 131, 115, 0.25),
      transparent 50%
    ),
    radial-gradient(
      circle at 70% 50%,
      rgba(200, 164, 93, 0.12),
      transparent 50%
    );
  pointer-events: none;
}
.data__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}
.data__card {
  text-align: center;
  padding: 40px 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  transition: all 0.3s var(--ease);
}
.data__card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(94, 224, 200, 0.4);
}
.data__num {
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 800;
  color: #fff;
  font-family:
    "Manrope",
    -apple-system,
    sans-serif;
  letter-spacing: -0.02em;
  display: inline-block;
}
.data__suffix {
  display: inline-block;
  font-size: 24px;
  font-weight: 700;
  color: #c8a45d;
  margin-left: 4px;
  vertical-align: top;
  line-height: 1.6;
}
.data__label {
  margin-top: 14px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.02em;
}

/* ============= About ============= */
.section--about {
  background: var(--c-paper);
  overflow: hidden;
}
.about__wrap {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 80px;
  align-items: center;
}
.about__photo {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/5;
}
.about__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.about__photo:hover img {
  transform: scale(1.05);
}
.about__badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  padding: 8px 16px;
  background: rgba(0, 131, 115, 0.92);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border-radius: 100px;
  backdrop-filter: blur(10px);
}
.about__info p {
  font-size: 16px;
  color: var(--c-mute);
  line-height: 1.95;
  margin-bottom: 16px;
}
.about__info .section__title {
  text-align: left;
  margin-bottom: 32px;
}
.about__info .section__kicker {
  display: block;
  text-align: left;
  margin-bottom: 14px;
}
.about__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.about__tags li {
  padding: 8px 16px;
  background: var(--c-bing-light);
  color: var(--c-bing-dark);
  font-size: 13px;
  font-weight: 600;
  border-radius: 100px;
}

/* ============= FAQ ============= */
.section--faq {
  background: #f4f6f8;
}
.faq__list {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq__item {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: all 0.3s var(--ease);
  overflow: hidden;
}
.faq__item[open] {
  border-color: var(--c-bing);
  box-shadow: var(--shadow-sm);
}
.faq__item summary {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 28px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
}
.faq__item summary::-webkit-details-marker {
  display: none;
}
.faq__item summary > span {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bing-light);
  color: var(--c-bing);
  font-size: 12px;
  font-weight: 700;
  border-radius: 8px;
  font-family: "Manrope", sans-serif;
}
.faq__item[open] summary > span {
  background: var(--c-bing);
  color: #fff;
}
.faq__item summary > span:nth-of-type(1) {
  background: transparent;
  color: var(--c-bing);
  font-size: 14px;
  width: auto;
  height: auto;
  font-weight: 700;
  padding-right: 8px;
  border-right: 1px solid var(--c-line);
  border-radius: 0;
}
.faq__item summary > span:nth-of-type(2) {
  display: none;
}
.faq__icon {
  margin-left: auto;
  width: 22px;
  height: 22px;
  position: relative;
  flex-shrink: 0;
}
.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-mute);
  transition: transform 0.3s var(--ease);
}
.faq__icon::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}
.faq__icon::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
}
.faq__item[open] .faq__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}
.faq__body {
  padding: 0 28px 24px 78px;
  font-size: 15px;
  color: var(--c-mute);
  line-height: 1.85;
  animation: fadeIn 0.4s var(--ease);
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============= Contact ============= */
.section--contact {
  background: linear-gradient(135deg, #072029 0%, #0d3b48 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.section--contact::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 131, 115, 0.3), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.contact__wrap {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 60px;
  align-items: center;
  position: relative;
}
.contact__info .section__kicker {
  background: rgba(0, 131, 115, 0.18);
  color: #5ee0c8;
}
.contact__info .section__title {
  color: #fff;
  text-align: left;
}
.contact__info > p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.85;
  margin-bottom: 32px;
  max-width: 560px;
}
.contact__list {
  display: grid;
  gap: 14px;
}
.contact__list li {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
}
.contact__list strong {
  color: rgba(255, 255, 255, 0.55);
  font-weight: 500;
  margin-right: 6px;
  display: inline-block;
  min-width: 80px;
}
.contact__list a {
  color: #5ee0c8;
  font-weight: 600;
}
.contact__list a:hover {
  color: #fff;
}
.contact__qr {
  background: #fff;
  padding: 24px;
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--c-ink);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}
.contact__qr img {
  width: 200px;
  height: 200px;
  margin: 0 auto 16px;
  border-radius: 8px;
}
.contact__qr p {
  font-size: 14px;
  color: var(--c-mute);
  line-height: 1.6;
  font-weight: 500;
}

/* ============= Matrix ============= */
.section--matrix {
  background: #fff;
}
.matrix__list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}
.matrix__list li a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 12px;
  font-size: 14px;
  color: var(--c-ink-2);
  background: #f4f6f8;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: all 0.3s var(--ease);
  text-align: center;
  font-weight: 500;
  min-height: 50px;
}
.matrix__list li a:hover {
  background: var(--c-bing);
  color: #fff;
  border-color: var(--c-bing);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 131, 115, 0.25);
}

/* ============= Footer ============= */
.footer {
  background: #051a24;
  color: rgba(255, 255, 255, 0.7);
  padding-top: 64px;
}
.footer__wrap {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 60px;
  padding-bottom: 60px;
}
.footer__brand p {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.footer__col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 0.05em;
}
.footer__col p {
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.6;
}
.footer__col a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s;
}
.footer__col a:hover {
  color: #5ee0c8;
}
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  font-size: 13px;
}
.footer__bottom-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__bottom a {
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}
.footer__bottom a:hover {
  color: #5ee0c8;
}

/* ============= 浮动电话 ============= */
.float-tel {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  background: var(--c-bing);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 100px;
  box-shadow: 0 10px 30px rgba(0, 131, 115, 0.45);
  transition: all 0.3s var(--ease);
  animation: telPulse 2.4s ease-in-out infinite;
}
.float-tel i {
  font-style: normal;
  font-family: "Manrope", sans-serif;
}
.float-tel:hover {
  transform: translateY(-3px);
  background: var(--c-bing-dark);
}
@keyframes telPulse {
  0%,
  100% {
    box-shadow: 0 10px 30px rgba(0, 131, 115, 0.45);
  }
  50% {
    box-shadow:
      0 10px 30px rgba(0, 131, 115, 0.45),
      0 0 0 14px rgba(0, 131, 115, 0);
  }
}

/* ============= 响应式 ============= */
@media (max-width: 1024px) {
  .section {
    padding: 80px 0;
  }
  .why__grid,
  .service__grid,
  .industry__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process__list {
    grid-template-columns: repeat(3, 1fr);
  }
  .data__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about__wrap {
    grid-template-columns: 300px 1fr;
    gap: 48px;
  }
  .matrix__list {
    grid-template-columns: repeat(4, 1fr);
  }
  .footer__wrap {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .footer__cols {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .nav__btn {
    display: flex;
  }
  .nav__list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(5, 20, 28, 0.97);
    backdrop-filter: blur(20px);
    padding: 20px;
    gap: 0;
    display: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
  .nav__list.is-open {
    display: flex;
  }
  .nav__list a {
    padding: 14px 20px;
    width: 100%;
    border-radius: 8px;
  }
  .nav__cta {
    margin: 8px 0 0 0;
    width: 100%;
  }
  .nav__cta a {
    text-align: center;
  }
  .hero__inner {
    padding: 60px 24px 40px;
  }
  .hero__badges {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
  }
  .section {
    padding: 64px 0;
  }
  .section__head {
    margin-bottom: 40px;
  }
  .why__grid,
  .service__grid,
  .industry__grid {
    grid-template-columns: 1fr;
  }
  .process__list {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .data__grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .data__card {
    padding: 30px 12px;
  }
  .about__wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .about__photo {
    max-width: 320px;
    margin: 0 auto;
  }
  .contact__wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .contact__qr {
    margin: 0 auto;
    max-width: 280px;
  }
  .matrix__list {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer__cols {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer__bottom-wrap {
    justify-content: center;
    text-align: center;
  }
  .float-tel {
    padding: 12px 18px;
    font-size: 14px;
  }
  .float-tel i {
    display: none;
  }
  .btn {
    padding: 14px 24px;
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 18px;
  }
  .hero__title {
    font-size: 34px;
  }
  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    justify-content: center;
  }
  .section__title {
    font-size: 26px;
  }
  .data__grid {
    grid-template-columns: 1fr;
  }
  .matrix__list {
    grid-template-columns: 1fr;
  }
}

/* ============= 滚动显示 ============= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============= 可访问性 ============= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
:focus-visible {
  outline: 2px solid var(--c-bing);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ============= 打印样式 ============= */
@media print {
  .nav,
  .hero__scroll,
  .float-tel,
  .hero__bg,
  .hero__grid {
    display: none !important;
  }
  .hero {
    min-height: auto;
    background: #fff;
    color: #000;
    padding: 20px;
  }
  .section {
    padding: 20px 0;
    page-break-inside: avoid;
  }
  body {
    background: #fff;
    color: #000;
  }
  a {
    text-decoration: underline;
  }
}