/* ============================================
   闫宝龙 - 西安短视频矩阵营销
   Design: 简约大气 · 导航Banner一体化
============================================ */

:root {
  --ink: #0b1e3f; /* 深墨蓝 - 主色 */
  --ink-2: #102a55;
  --ink-3: #1b3a75;
  --brand: #ff6a1a; /* 品牌活力橙 */
  --brand-2: #ff8a4a;
  --brand-3: #ffb07a;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --bg-deep: #0a1733;
  --line: #e5e9f2;
  --text: #1b2433;
  --text-2: #4a5568;
  --text-3: #7a8499;
  --max: 1280px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(11, 30, 63, 0.06);
  --shadow: 0 10px 30px rgba(11, 30, 63, 0.08);
  --shadow-lg: 0 20px 60px rgba(11, 30, 63, 0.12);
  --t: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family:
    "Noto Sans SC",
    "PingFang SC",
    "Microsoft YaHei",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t);
}
ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
h1,
h2,
h3,
h4 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-weight: 600;
  line-height: 1.3;
  margin: 0;
}
p {
  margin: 0;
}
button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: transparent;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

/* ============= 通用按钮 ============= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.5px;
  transition: all var(--t);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 106, 26, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(255, 106, 26, 0.45);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

/* ============= 顶部 + 导航 ============= */
.site-header {
  position: relative;
  background: linear-gradient(180deg, #0a1733 0%, #0b1e3f 60%, #0f2552 100%);
  color: #fff;
  overflow: hidden;
}
.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 28px;
  background: rgba(10, 23, 51, 0.6);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--t);
}
.nav-wrap.scrolled {
  background: rgba(10, 23, 51, 0.92);
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: "Noto Serif SC", serif;
  color: #fff;
}
.brand-name {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 1px;
  position: relative;
}
.brand-name .tm {
  font-size: 11px;
  font-weight: 500;
  color: var(--brand-2);
  margin-left: 2px;
  top: -12px;
  position: relative;
}
.brand-divider {
  color: rgba(255, 255, 255, 0.4);
  font-weight: 300;
}
.brand-tag {
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.85);
  font-family: "Noto Sans SC", sans-serif;
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav a {
  position: relative;
  padding: 8px 14px;
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  transition:
    color var(--t),
    background var(--t);
}
.nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.nav a.nav-cta {
  margin-left: 10px;
  padding: 9px 20px;
  background: var(--brand);
  color: #fff;
  border-radius: 999px;
  font-weight: 500;
}
.nav a.nav-cta:hover {
  background: var(--brand-2);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  position: relative;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition:
    transform var(--t),
    opacity var(--t);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============= Hero 一体化 ============= */
.hero {
  position: relative;
  padding: 60px 0 110px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.grid-layer {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    #000 30%,
    transparent 75%
  );
}
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  animation: floatGlow 14s ease-in-out infinite;
}
.glow-1 {
  width: 520px;
  height: 520px;
  background: rgba(255, 106, 26, 0.35);
  top: -120px;
  right: -120px;
}
.glow-2 {
  width: 420px;
  height: 420px;
  background: rgba(27, 58, 117, 0.6);
  bottom: -180px;
  left: -100px;
  animation-delay: -4s;
}
.glow-3 {
  width: 300px;
  height: 300px;
  background: rgba(86, 138, 255, 0.35);
  top: 40%;
  left: 45%;
  animation-delay: -8s;
}
@keyframes floatGlow {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(30px, -20px) scale(1.08);
  }
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  padding: 6px 16px;
  margin-bottom: 24px;
  background: rgba(255, 106, 26, 0.15);
  border: 1px solid rgba(255, 106, 26, 0.35);
  color: var(--brand-3);
  font-size: 13px;
  letter-spacing: 2px;
  border-radius: 999px;
}
.hero-text h1 {
  font-size: 54px;
  line-height: 1.18;
  color: #fff;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero-text h1 .rotator {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline-block;
  min-width: 6em;
  transition:
    opacity 0.5s,
    transform 0.5s;
}
.lede {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.78);
  max-width: 580px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.hero-stats li {
  display: flex;
  flex-direction: column;
}
.hero-stats strong {
  font-family: "Noto Serif SC", serif;
  font-size: 36px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0;
  line-height: 1;
}
.hero-stats strong small {
  font-size: 18px;
  color: var(--brand-2);
  margin-left: 2px;
}
.hero-stats span {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 8px;
  letter-spacing: 1px;
}

/* 右侧矩阵示意图 */
.hero-visual {
  position: relative;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.matrix-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
  padding: 14px 22px;
  border-radius: 14px;
  color: #fff;
  font-size: 14.5px;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: floatCard 6s ease-in-out infinite;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}
.matrix-card .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 12px var(--brand);
}
.card-1 {
  top: 8%;
  left: 5%;
  animation-delay: 0s;
}
.card-2 {
  top: 5%;
  right: 0;
  animation-delay: -1s;
}
.card-3 {
  top: 50%;
  left: -2%;
  animation-delay: -2s;
}
.card-4 {
  bottom: 10%;
  left: 15%;
  animation-delay: -3s;
}
.card-5 {
  bottom: 8%;
  right: 5%;
  animation-delay: -4s;
}
@keyframes floatCard {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}
.matrix-center {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(
    circle at 30% 30%,
    var(--brand) 0%,
    var(--brand-2) 40%,
    #c84a0c 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 0 60px rgba(255, 106, 26, 0.55),
    inset 0 0 40px rgba(0, 0, 0, 0.2);
  position: relative;
  animation: pulse 3s ease-in-out infinite;
}
.matrix-center::before {
  content: "";
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 1px dashed rgba(255, 106, 26, 0.4);
  animation: rotate 16s linear infinite;
}
@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 60px rgba(255, 106, 26, 0.55);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 80px rgba(255, 106, 26, 0.7);
  }
}
@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}
.matrix-core {
  font-family: "Noto Serif SC", serif;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  text-align: center;
  line-height: 1.2;
  letter-spacing: 2px;
}

/* ============= Section 通用 ============= */
.section {
  padding: 110px 0;
  position: relative;
}
.section-alt {
  background: var(--bg-alt);
}
.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px;
}
.kicker {
  font-size: 12px;
  letter-spacing: 4px;
  font-weight: 500;
  color: var(--brand);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: 38px;
  color: var(--ink);
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.section-head h2 .hl {
  position: relative;
  color: var(--ink-3);
  display: inline-block;
}
.section-head h2 .hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 8px;
  background: linear-gradient(90deg, var(--brand), transparent);
  opacity: 0.25;
  border-radius: 4px;
}
.section-head .sub {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.85;
}

/* 滚动入场动画 */
[data-anim] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}
[data-anim].in {
  opacity: 1;
  transform: translateY(0);
}

/* ============= 价值板块 ============= */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.value-card {
  background: #fff;
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  transition:
    transform var(--t),
    box-shadow var(--t),
    border-color var(--t);
  position: relative;
  overflow: hidden;
}
.value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.value-card:hover::before {
  transform: scaleX(1);
}
.vico {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-3) 100%);
  margin-bottom: 20px;
}
.vico-1 {
  background: linear-gradient(135deg, #ff6a1a 0%, #ff8a4a 100%);
}
.vico-2 {
  background: linear-gradient(135deg, #0b1e3f 0%, #1b3a75 100%);
}
.vico-3 {
  background: linear-gradient(135deg, #2563eb 0%, #568aff 100%);
}
.vico-4 {
  background: linear-gradient(135deg, #9333ea 0%, #c084fc 100%);
}
.value-card h3 {
  font-size: 20px;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.value-card p {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.8;
}

/* ============= 西安本地优势 ============= */
.local-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.local-item {
  background: #fff;
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  transition: all var(--t);
}
.local-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.local-item .num {
  display: inline-block;
  font-family: "Noto Serif SC", serif;
  font-size: 30px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
}
.local-item h3 {
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 10px;
}
.local-item p {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.8;
}

/* ============= 服务内容 ============= */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: #fff;
  padding: 36px 30px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  transition: all var(--t);
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 106, 26, 0.12) 0%,
    transparent 70%
  );
  top: -70px;
  right: -70px;
  transition: transform 0.6s ease;
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(255, 106, 26, 0.3);
}
.service-card:hover::after {
  transform: scale(1.4);
}
.service-card h3 {
  font-size: 22px;
  color: var(--ink);
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.service-card p {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}
.service-card ul {
  position: relative;
  z-index: 1;
}
.service-card ul li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 8px;
}
.service-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 2px;
  background: var(--brand);
  border-radius: 1px;
}

/* ============= 服务流程 ============= */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
  counter-reset: step;
}
.process::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--brand) 20%,
    var(--brand) 80%,
    transparent
  );
  opacity: 0.4;
  z-index: 0;
}
.process li {
  position: relative;
  text-align: center;
  padding: 0 12px;
  z-index: 1;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 84px;
  height: 84px;
  background: #fff;
  border: 2px solid var(--brand);
  border-radius: 50%;
  font-family: "Noto Serif SC", serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  margin: 0 auto 18px;
  transition: all var(--t);
  letter-spacing: 0.3px;
  line-height: 1.2;
  text-align: center;
}
.step-num::before{
  content:"STEP";
  display:block;
  font-size:11px;
  margin-bottom:2px;
}
.process li:hover .step-num {
  background: var(--brand);
  color: #fff;
  transform: scale(1.05);
}
.process h3 {
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 10px;
}
.process p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
}

/* ============= 关于闫宝龙 ============= */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: center;
}
.about-photo {
  position: relative;
}
.photo-frame {
  position: relative;
  display: inline-block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.photo-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(11, 30, 63, 0) 60%,
    rgba(255, 106, 26, 0.15)
  );
  pointer-events: none;
}
.photo-frame img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 4/5;
}
.photo-tag {
  position: absolute;
  bottom: -14px;
  right: 20px;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-family: "Noto Serif SC", serif;
  font-size: 14px;
  letter-spacing: 1px;
  box-shadow: var(--shadow);
}
.about-text .kicker {
  margin-top: 0;
}
.about-text h2 {
  font-size: 34px;
  color: var(--ink);
  margin-bottom: 20px;
}
.about-text p {
  font-size: 15.5px;
  color: var(--text-2);
  line-height: 1.9;
  margin-bottom: 14px;
}
.about-points {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.about-points li {
  position: relative;
  padding: 12px 16px 12px 56px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--line);
  font-size: 14px;
  color: var(--text-2);
  transition: all var(--t);
}
.about-points li:hover {
  border-color: var(--brand);
  transform: translateX(4px);
}
.about-points li span {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  color: var(--brand);
  font-size: 15px;
  letter-spacing: 0;
}

/* ============= FAQ ============= */
.faq {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq details {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: all var(--t);
}
.faq details[open] {
  border-color: var(--brand);
  box-shadow: var(--shadow);
}
.faq summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 20px 60px 20px 24px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  font-family: "Noto Serif SC", serif;
  letter-spacing: 0.5px;
  transition: color var(--t);
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary:hover {
  color: var(--brand);
}
.faq summary .arr {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 106, 26, 0.1);
  transition:
    transform var(--t),
    background var(--t);
}
.faq summary .arr::before,
.faq summary .arr::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--brand);
  border-radius: 1px;
  transition: transform var(--t);
}
.faq summary .arr::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}
.faq summary .arr::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
}
.faq details[open] summary .arr {
  background: var(--brand);
}
.faq details[open] summary .arr::before {
  background: #fff;
}
.faq details[open] summary .arr::after {
  transform: translate(-50%, -50%) rotate(90deg);
  background: #fff;
  opacity: 0;
}
.faq-body {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.85;
}

/* ============= 联系方式 ============= */
.contact {
  background: linear-gradient(180deg, #0a1733 0%, #0b1e3f 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.contact::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: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    #000 30%,
    transparent 75%
  );
  pointer-events: none;
}
.contact .section-head {
  position: relative;
  z-index: 1;
}
.contact .section-head h2,
.contact .section-head h2 .hl {
  color: #fff;
}
.contact .section-head h2 .hl::after {
  background: linear-gradient(90deg, var(--brand-2), transparent);
  opacity: 0.4;
}
.contact .section-head .sub {
  color: rgba(255, 255, 255, 0.75);
}

.contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.contact-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: all var(--t);
}
.contact-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--brand-2);
  transform: translateY(-4px);
}
.contact-card .ci {
  width: 56px;
  height: 56px;
  line-height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
  margin: 0 auto 18px;
  font-size: 24px;
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 106, 26, 0.3);
}
.contact-card h3 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 10px;
}
.contact-card p {
  font-size: 20px;
  color: #fff;
  margin-bottom: 6px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.contact-card a {
  color: #fff;
}
.contact-card a:hover {
  color: var(--brand-3);
}
.contact-card .ctip {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.5px;
}
.contact-card.qr .qr-img {
  width: 160px;
  height: 160px;
  margin: 0 auto 14px;
  background: #fff;
  padding: 8px;
  border-radius: 12px;
}
.contact-card.qr .qr-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 6px;
}

/* ============= 底部 ============= */
.site-footer {
  background: #06122b;
  color: rgba(255, 255, 255, 0.7);
  padding: 72px 0 28px;
}
.foot-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.foot-brand .brand-foot .brand-name {
  font-size: 20px;
}
.foot-brand .brand-foot .brand-tag {
  font-size: 13px;
}
.foot-desc {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.55);
  max-width: 280px;
}
.foot-col h4 {
  font-family: "Noto Sans SC", sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.foot-col ul li {
  margin-bottom: 8px;
}
.foot-col ul a {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--t);
}
.foot-col ul a:hover {
  color: var(--brand-2);
}
.foot-bottom {
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.foot-bottom a {
  color: rgba(255, 255, 255, 0.65);
}
.foot-bottom a:hover {
  color: var(--brand-2);
}

/* ============= 响应式 ============= */
@media (max-width: 1080px) {
  .hero-text h1 {
    font-size: 44px;
  }
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .foot-top {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .local-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 40px;
  }
  .process::before {
    display: none;
  }
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 820px) {
  .container {
    padding: 0 20px;
  }
  .section {
    padding: 80px 0;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .hero {
    padding: 40px 0 80px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-text h1 {
    font-size: 34px;
  }
  .lede {
    font-size: 15.5px;
  }
  .hero-visual {
    height: 400px;
    order: -1;
  }
  .nav-wrap {
    padding: 14px 20px;
  }
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 78%;
    max-width: 320px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    background: rgba(10, 23, 51, 0.98);
    backdrop-filter: blur(20px);
    padding: 90px 28px 28px;
    gap: 4px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 1px solid rgba(255, 255, 255, 0.08);
  }
  .nav.open {
    right: 0;
  }
  .nav a {
    width: 100%;
    font-size: 16px;
    padding: 14px 16px;
    border-radius: 10px;
  }
  .nav a.nav-cta {
    margin-left: 0;
    margin-top: 14px;
    text-align: center;
    justify-content: center;
  }
  .nav-toggle {
    display: flex;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-photo {
    max-width: 340px;
    margin: 0 auto;
  }
  .process {
    grid-template-columns: 1fr 1fr;
  }
  .hero-stats {
    gap: 32px;
  }
  .hero-stats strong {
    font-size: 28px;
  }
  .foot-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }
  .foot-brand {
    grid-column: 1/-1;
  }
  .about-text h2 {
    font-size: 26px;
  }
  .about-points {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 520px) {
  .hero-text h1 {
    font-size: 28px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .value-grid,
  .local-grid,
  .service-grid {
    grid-template-columns: 1fr;
  }
  .process {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .foot-top {
    grid-template-columns: 1fr;
  }
  .brand-name {
    font-size: 20px;
  }
  .brand-tag {
    font-size: 12px;
    letter-spacing: 1px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    justify-content: center;
  }
  .matrix-center {
    width: 130px;
    height: 130px;
  }
  .matrix-core {
    font-size: 18px;
  }
  .matrix-card {
    font-size: 13px;
    padding: 10px 16px;
  }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}