/* ==========================================================================
   西安铭赞网络 - 西班牙语网站建设 营销网站样式
   风格：简约大气 · 商务质感 · 西班牙文化韵味
   ========================================================================== */

/* --- 设计令牌 ---------------------------------------------------------- */
:root {
  /* 品牌色 */
  --brand-ink: #0b1f3a; /* 主色 - 午夜蓝 */
  --brand-ink-deep: #061226;
  --brand-ink-soft: #122a4a;
  --brand-gold: #d4a857; /* 辅色 - 暖金 */
  --brand-gold-light: #e8c989;
  --brand-gold-deep: #b88a35;
  --brand-red: #c8102e; /* 点缀 - 西班牙红 */
  --brand-cream: #f5efe6; /* 背景 - 砂金米白 */
  --brand-cream-deep: #e8dfce;
  --brand-line: #e2d8c2;

  /* 文字 */
  --text-primary: #1a2438;
  --text-secondary: #4a5568;
  --text-muted: #7a8699;
  --text-inverse: #f5efe6;
  --text-inverse-soft: rgba(245, 239, 230, 0.7);

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(11, 31, 58, 0.06);
  --shadow-md: 0 4px 14px rgba(11, 31, 58, 0.08);
  --shadow-lg: 0 12px 40px rgba(11, 31, 58, 0.12);
  --shadow-xl: 0 24px 60px rgba(11, 31, 58, 0.18);

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* 容器 */
  --container-max: 1280px;
  --container-pad: 24px;

  /* 字体 */
  --font-display:
    "Playfair Display", "Cormorant Garamond", "Noto Serif SC", "Songti SC",
    "STSong", serif;
  --font-serif:
    "Cormorant Garamond", "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-sans:
    "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans",
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

/* --- 基础重置 ---------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 88px;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--brand-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

em {
  font-style: normal;
  color: var(--brand-gold-deep);
  font-weight: 600;
}

/* 选区 */
::selection {
  background: var(--brand-gold);
  color: var(--brand-ink);
}

/* --- 容器 ------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

/* --- 通用按钮 -------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 999px;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--brand-gold);
  color: var(--brand-ink);
  box-shadow: 0 8px 24px rgba(212, 168, 87, 0.35);
}

.btn-primary:hover {
  background: var(--brand-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(212, 168, 87, 0.5);
}

.btn-ghost {
  background: transparent;
  color: var(--text-inverse);
  border-color: rgba(245, 239, 230, 0.4);
}

.btn-ghost:hover {
  background: rgba(245, 239, 230, 0.1);
  border-color: var(--brand-gold);
  color: var(--brand-gold);
}

/* --- 顶部 Hero + 导航 ------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(
    135deg,
    var(--brand-ink-deep) 0%,
    var(--brand-ink) 60%,
    var(--brand-ink-soft) 100%
  );
  color: var(--text-inverse);
  overflow: hidden;
  isolation: isolate;
}

/* Hero 背景层 */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-bg-mesh {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(
      ellipse 60% 50% at 15% 20%,
      rgba(212, 168, 87, 0.18) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse 50% 40% at 85% 80%,
      rgba(200, 16, 46, 0.12) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse 80% 60% at 50% 100%,
      rgba(212, 168, 87, 0.1) 0%,
      transparent 60%
    );
  filter: blur(20px);
  animation: meshDrift 20s ease-in-out infinite alternate;
}

@keyframes meshDrift {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(-3%, 2%) scale(1.08);
  }
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(212, 168, 87, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 168, 87, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(
    ellipse 80% 60% at 50% 30%,
    #000 30%,
    transparent 80%
  );
  -webkit-mask-image: radial-gradient(
    ellipse 80% 60% at 50% 30%,
    #000 30%,
    transparent 80%
  );
}

.hero-bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
}

.hero-bg-glow--gold {
  top: -200px;
  right: -100px;
  background: radial-gradient(
    circle,
    rgba(212, 168, 87, 0.4) 0%,
    transparent 70%
  );
  animation: glowFloat 12s ease-in-out infinite alternate;
}

.hero-bg-glow--red {
  bottom: -200px;
  left: -100px;
  background: radial-gradient(
    circle,
    rgba(200, 16, 46, 0.3) 0%,
    transparent 70%
  );
  animation: glowFloat 15s ease-in-out infinite alternate-reverse;
}

@keyframes glowFloat {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(40px, -30px) scale(1.15);
  }
}

.hero-bg-flare {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200vw;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--brand-gold) 50%,
    transparent 100%
  );
  opacity: 0.3;
  animation: flareScan 8s ease-in-out infinite;
}

@keyframes flareScan {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
    opacity: 0.2;
  }
  50% {
    transform: translateX(-50%) translateY(40vh);
    opacity: 0.5;
  }
}

.hero-bg-deco {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* --- 导航 ------------------------------------------------------------ */
.nav {
  position: relative;
  z-index: 10;
  padding: 18px 0;
  transition: all 0.3s ease;
}

.nav.is-sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 12px 0;
  background: rgba(11, 31, 58, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(212, 168, 87, 0.2);
  box-shadow: 0 8px 32px rgba(6, 18, 38, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-inverse);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.logo-mark {
  display: inline-flex;
  align-items: flex-start;
  gap: 2px;
  font-size: 20px;
  font-weight: 600;
  font-family: var(--font-serif);
}

.logo-text {
  background: linear-gradient(
    135deg,
    #f5efe6 0%,
    var(--brand-gold) 50%,
    #f5efe6 100%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: shimmer 6s ease-in-out infinite;
}

@keyframes shimmer {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.logo-r {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 400;
  color: var(--brand-red);
  margin-top: 2px;
  text-shadow: 0 0 8px rgba(200, 16, 46, 0.5);
}

.logo-divider {
  display: inline-block;
  width: 1px;
  height: 22px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--brand-gold) 50%,
    transparent 100%
  );
  opacity: 0.6;
}

.logo-key {
  font-size: 15px;
  font-weight: 400;
  color: var(--text-inverse-soft);
  letter-spacing: 0.04em;
}

.logo--footer .logo-text {
  background: linear-gradient(135deg, #f5efe6 0%, var(--brand-gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list a {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  font-size: 14.5px;
  font-weight: 400;
  color: var(--text-inverse-soft);
  border-radius: 8px;
  transition: all 0.25s ease;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 1px;
  background: var(--brand-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.nav-list a:hover {
  color: var(--text-inverse);
}

.nav-list a:hover::after,
.nav-list a.is-active::after {
  transform: scaleX(1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--brand-ink);
  background: var(--brand-gold);
  border-radius: 999px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px rgba(212, 168, 87, 0.3);
}

.nav-cta:hover {
  background: var(--brand-gold-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(212, 168, 87, 0.45);
}

/* 移动端汉堡按钮 */
.nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 8px;
}

.nav-burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-inverse);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-burger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-burger.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-burger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  background: rgba(6, 18, 38, 0.98);
  border-top: 1px solid rgba(212, 168, 87, 0.2);
}

.mobile-menu a {
  padding: 14px 0;
  font-size: 16px;
  color: var(--text-inverse);
  border-bottom: 1px solid rgba(245, 239, 230, 0.08);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu-cta {
  margin-top: 12px;
  text-align: center;
  background: var(--brand-gold);
  color: var(--brand-ink) !important;
  border-radius: 999px !important;
  font-weight: 500;
  border-bottom: none !important;
}

/* --- Hero 主体内容 --------------------------------------------------- */
.hero-content {
  position: relative;
  z-index: 5;
  padding: 60px 0 120px;
}

.hero-content-inner {
  max-width: 880px;
  text-align: left;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  margin-bottom: 32px;
  font-size: 13px;
  font-weight: 500;
  color: var(--brand-gold);
  background: rgba(212, 168, 87, 0.08);
  border: 1px solid rgba(212, 168, 87, 0.25);
  border-radius: 999px;
  letter-spacing: 0.05em;
  animation: fadeUp 0.8s 0.1s both;
}

.hero-eyebrow-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--brand-gold);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(212, 168, 87, 0.2);
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.2);
  }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5.4vw, 68px);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
  color: var(--text-inverse);
}

.hero-title-line {
  display: block;
  opacity: 0;
  transform: translateY(30px);
  animation: titleUp 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.hero-title-line:nth-child(1) {
  animation-delay: 0.2s;
}
.hero-title-line:nth-child(2) {
  animation-delay: 0.4s;
}
.hero-title-line:nth-child(3) {
  animation-delay: 0.6s;
}

@keyframes titleUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title-accent {
  background: linear-gradient(
    135deg,
    var(--brand-gold) 0%,
    var(--brand-gold-light) 50%,
    var(--brand-gold) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  position: relative;
  padding: 0 4px;
}

.hero-subtitle {
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--text-inverse-soft);
  max-width: 720px;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 0.9s 0.7s both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 64px;
  opacity: 0;
  animation: fadeUp 0.9s 0.85s both;
}

.hero-trust {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 720px;
  padding-top: 32px;
  border-top: 1px solid rgba(245, 239, 230, 0.12);
  opacity: 0;
  animation: fadeUp 0.9s 1s both;
}

.hero-trust li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-trust strong {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  color: var(--brand-gold);
  letter-spacing: -0.01em;
}

.hero-trust strong small {
  font-size: 0.6em;
  font-weight: 500;
  margin-left: 2px;
}

.hero-trust span {
  font-size: 13px;
  color: var(--text-inverse-soft);
  letter-spacing: 0.05em;
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  z-index: 5;
  width: 26px;
  height: 42px;
  border: 1.5px solid rgba(245, 239, 230, 0.4);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  opacity: 0;
  animation: fadeUp 1s 1.2s both;
}

.hero-scroll span {
  display: block;
  width: 2px;
  height: 8px;
  background: var(--brand-gold);
  border-radius: 2px;
  animation: scrollDot 1.6s ease-in-out infinite;
}

@keyframes scrollDot {
  0% {
    transform: translateY(0);
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  100% {
    transform: translateY(16px);
    opacity: 0;
  }
}

/* --- 通用板块 ------------------------------------------------------- */
.section {
  position: relative;
  padding: 100px 0;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--brand-gold-deep);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
  position: relative;
  padding-left: 28px;
}

.section-eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 1px;
  background: var(--brand-gold);
}

.section-eyebrow--light {
  color: var(--brand-gold);
}

.section-eyebrow--light::before {
  background: var(--brand-gold);
}

.section-head {
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.25;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.section-title em {
  background: linear-gradient(
    120deg,
    var(--brand-gold-deep) 0%,
    var(--brand-red) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section-title--light {
  color: var(--text-inverse);
}

.section-title--light em {
  background: linear-gradient(120deg, var(--brand-gold-light) 0%, #f5efe6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.section-desc--light {
  color: var(--text-inverse-soft);
}

/* 滚动入场动画初始状态 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
  transition-delay: var(--reveal-delay, 0s);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- 业务概述 ------------------------------------------------------- */
.section-overview {
  background: linear-gradient(180deg, var(--brand-cream) 0%, #ffffff 100%);
}

.overview-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}

.overview-text p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.overview-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--brand-line);
}

.overview-stat {
  text-align: left;
  position: relative;
}

.overview-stat-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 700;
  color: var(--brand-ink);
  letter-spacing: -0.02em;
  line-height: 1;
}

.overview-stat-suffix {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--brand-gold-deep);
  margin-left: 2px;
}

.overview-stat-label {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.overview-visual {
  position: relative;
  height: 480px;
}

.overview-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  background: #ffffff;
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.overview-card:hover {
  transform: translateY(-4px) rotate(0deg) !important;
  box-shadow: var(--shadow-xl);
  border-color: var(--brand-gold);
}

.overview-card--a {
  top: 0;
  left: 0;
  transform: rotate(-3deg);
  z-index: 4;
}

.overview-card--b {
  top: 100px;
  right: 0;
  transform: rotate(2deg);
  z-index: 3;
}

.overview-card--c {
  top: 220px;
  left: 40px;
  transform: rotate(-1deg);
  z-index: 2;
}

.overview-card--d {
  top: 320px;
  right: 40px;
  transform: rotate(3deg);
  z-index: 1;
}

.overview-card-flag {
  display: flex;
  flex-direction: column;
  width: 40px;
  height: 28px;
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.overview-card-flag span {
  flex: 1;
}

.overview-card-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

/* --- 服务内容 ------------------------------------------------------- */
.section-services {
  background: #ffffff;
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  padding: 36px 28px;
  background: var(--brand-cream);
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-lg);
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--brand-gold) 0%,
    var(--brand-red) 100%
  );
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  background: #ffffff;
  box-shadow: var(--shadow-lg);
  border-color: var(--brand-gold-light);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
  color: var(--brand-ink);
  background: linear-gradient(
    135deg,
    var(--brand-gold) 0%,
    var(--brand-gold-light) 100%
  );
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(212, 168, 87, 0.3);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.service-card p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* --- 核心优势 ------------------------------------------------------- */
.section-advantage {
  background: linear-gradient(180deg, #ffffff 0%, var(--brand-cream) 100%);
  position: relative;
}

.section-advantage::before {
  content: "";
  position: absolute;
  top: 60px;
  right: 0;
  width: 360px;
  height: 360px;
  background: radial-gradient(
    circle,
    rgba(212, 168, 87, 0.15) 0%,
    transparent 70%
  );
  border-radius: 50%;
  pointer-events: none;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.advantage-item {
  position: relative;
  padding: 32px 28px;
  background: #ffffff;
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-lg);
  transition: all 0.4s ease;
}

.advantage-item:hover {
  transform: translateY(-4px);
  border-color: var(--brand-gold);
  box-shadow: var(--shadow-md);
}

.advantage-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--brand-gold);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 18px;
}

.advantage-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.advantage-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* --- 行业经验 ------------------------------------------------------- */
.section-experience {
  background: linear-gradient(
    135deg,
    var(--brand-ink-deep) 0%,
    var(--brand-ink) 100%
  );
  color: var(--text-inverse);
  overflow: hidden;
  position: relative;
}

.experience-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse 60% 50% at 80% 30%,
      rgba(212, 168, 87, 0.18) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse 50% 40% at 20% 80%,
      rgba(200, 16, 46, 0.1) 0%,
      transparent 50%
    );
  pointer-events: none;
}

.section-experience .container {
  position: relative;
  z-index: 2;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}

.experience-card {
  padding: 40px 24px;
  text-align: center;
  background: rgba(245, 239, 230, 0.04);
  border: 1px solid rgba(212, 168, 87, 0.2);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.4s ease;
}

.experience-card:hover {
  background: rgba(212, 168, 87, 0.08);
  border-color: var(--brand-gold);
  transform: translateY(-4px);
}

.experience-num {
  font-family: var(--font-display);
  font-size: clamp(48px, 5vw, 64px);
  font-weight: 700;
  color: var(--brand-gold);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.experience-label {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-inverse);
  margin-bottom: 6px;
}

.experience-desc {
  font-size: 13px;
  color: var(--text-inverse-soft);
  letter-spacing: 0.04em;
}

.experience-industries {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 28px 32px;
  background: rgba(245, 239, 230, 0.04);
  border: 1px solid rgba(212, 168, 87, 0.2);
  border-radius: var(--radius-lg);
}

.experience-industries-label {
  font-size: 14px;
  color: var(--brand-gold);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-right: 8px;
}

.experience-industries-item {
  padding: 6px 14px;
  font-size: 13px;
  color: var(--text-inverse-soft);
  background: rgba(212, 168, 87, 0.1);
  border: 1px solid rgba(212, 168, 87, 0.25);
  border-radius: 999px;
  transition: all 0.3s ease;
}

.experience-industries-item:hover {
  background: var(--brand-gold);
  color: var(--brand-ink);
  border-color: var(--brand-gold);
}

/* --- 合作流程 ------------------------------------------------------- */
.section-process {
  background: var(--brand-cream);
}

.process-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0;
  counter-reset: step;
}

.process-timeline::before {
  content: "";
  position: absolute;
  top: 30px;
  left: 7%;
  right: 7%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--brand-gold) 10%,
    var(--brand-gold) 90%,
    transparent 100%
  );
  z-index: 0;
}

.process-step {
  position: relative;
  padding-top: 80px;
  text-align: center;
  z-index: 1;
}

.process-dot {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-ink);
  background: var(--brand-gold);
  border: 4px solid var(--brand-cream);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--brand-gold);
  transition: all 0.3s ease;
}

.process-step:hover .process-dot {
  background: var(--brand-ink);
  color: var(--brand-gold);
  box-shadow:
    0 0 0 2px var(--brand-ink),
    0 0 0 8px rgba(11, 31, 58, 0.1);
  transform: translateX(-50%) scale(1.1);
}

.process-body h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.process-body p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* --- FAQ ------------------------------------------------------------- */
.section-faq {
  background: #ffffff;
}

.faq-list {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--brand-cream);
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item[open] {
  background: #ffffff;
  border-color: var(--brand-gold);
  box-shadow: 0 4px 20px rgba(212, 168, 87, 0.12);
}

.faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 28px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-q {
  flex: 1;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
}

.faq-item[open] .faq-q {
  color: var(--brand-ink);
}

.faq-toggle {
  position: relative;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(212, 168, 87, 0.15);
  border: 1px solid rgba(212, 168, 87, 0.3);
  transition: all 0.3s ease;
}

.faq-toggle::before,
.faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--brand-gold-deep);
  border-radius: 1px;
  transition: all 0.3s ease;
}

.faq-toggle::before {
  width: 12px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.faq-toggle::after {
  width: 1.5px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.faq-item[open] .faq-toggle {
  background: var(--brand-gold);
  transform: rotate(180deg);
}

.faq-item[open] .faq-toggle::before,
.faq-item[open] .faq-toggle::after {
  background: var(--brand-ink);
}

.faq-item[open] .faq-toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.faq-a {
  padding: 0 28px 24px;
}

.faq-a p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.faq-a strong {
  color: var(--brand-ink);
  font-weight: 600;
}

/* --- 联系方式 ------------------------------------------------------- */
.section-contact {
  background: linear-gradient(180deg, var(--brand-cream) 0%, #ffffff 100%);
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: stretch;
}

.contact-block-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--brand-line);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  color: var(--brand-gold-deep);
  background: rgba(212, 168, 87, 0.12);
  border-radius: 12px;
  border: 1px solid rgba(212, 168, 87, 0.2);
}

.contact-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.contact-value {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
}

.contact-link {
  color: var(--text-primary);
  transition: color 0.2s ease;
}

.contact-link:hover {
  color: var(--brand-gold-deep);
}

.contact-qr {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.qr-card {
  padding: 28px;
  text-align: center;
  background: #ffffff;
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.qr-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand-gold);
}

.qr-img {
  display: inline-block;
  padding: 12px;
  background: #ffffff;
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.qr-img img {
  width: 180px;
  height: 180px;
  display: block;
}

.qr-caption strong {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.qr-caption span {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.qr-weibo {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: linear-gradient(
    135deg,
    var(--brand-ink) 0%,
    var(--brand-ink-soft) 100%
  );
  color: var(--text-inverse);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
}

.qr-weibo:hover {
  background: linear-gradient(135deg, var(--brand-red) 0%, #e63946 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(200, 16, 46, 0.3);
}

.qr-weibo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: #ffffff;
  flex-shrink: 0;
}

.qr-weibo strong {
  display: block;
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 2px;
}

.qr-weibo span {
  font-size: 12px;
  color: var(--text-inverse-soft);
}

/* --- 其他业务导航 --------------------------------------------------- */
.section-other {
  background: var(--brand-cream);
  border-top: 1px solid var(--brand-line);
}

.other-group {
  margin-bottom: 48px;
}

.other-group:last-child {
  margin-bottom: 0;
}

.other-group-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
  padding-left: 16px;
  border-left: 3px solid var(--brand-gold);
}

.other-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 12px;
}

.other-grid li a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 12px;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
  background: #ffffff;
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
  line-height: 1.4;
  min-height: 56px;
}

.other-grid li a:hover {
  color: var(--brand-ink);
  background: var(--brand-gold);
  border-color: var(--brand-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.other-grid .other-current {
  color: var(--brand-ink);
  background: linear-gradient(
    135deg,
    var(--brand-gold) 0%,
    var(--brand-gold-light) 100%
  );
  border-color: var(--brand-gold);
  font-weight: 500;
  position: relative;
}

.other-grid .other-current::after {
  content: "当前";
  position: absolute;
  top: -6px;
  right: -6px;
  padding: 2px 6px;
  font-size: 10px;
  background: var(--brand-red);
  color: #ffffff;
  border-radius: 999px;
  font-weight: 500;
}

/* --- 底部 ------------------------------------------------------------ */
.footer {
  background: linear-gradient(180deg, var(--brand-ink-deep) 0%, #02080f 100%);
  color: var(--text-inverse);
  padding: 64px 0 32px;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--brand-gold) 50%,
    transparent 100%
  );
  opacity: 0.4;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(245, 239, 230, 0.08);
}

.footer-brand {
  max-width: 480px;
}

.footer .logo {
  margin-bottom: 24px;
}

.footer-tagline,
.footer-address {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-inverse-soft);
}

.footer-tagline {
  margin-bottom: 8px;
  color: var(--brand-gold);
  font-weight: 500;
}

.footer-contact {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 32px;
  align-content: start;
}

.footer-contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-contact-item span {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-contact-item a {
  font-size: 14.5px;
  color: var(--text-inverse);
  transition: color 0.2s ease;
}

.footer-contact-item a:hover {
  color: var(--brand-gold);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 32px;
  font-size: 13px;
  color: var(--text-inverse-soft);
}

.footer-bottom a {
  color: var(--brand-gold);
  transition: color 0.2s ease;
}

.footer-bottom a:hover {
  color: var(--brand-gold-light);
}

/* --- 回到顶部 ------------------------------------------------------- */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-ink);
  background: var(--brand-gold);
  border-radius: 50%;
  box-shadow: 0 6px 20px rgba(212, 168, 87, 0.4);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all 0.3s ease;
}

.back-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-top:hover {
  background: var(--brand-gold-light);
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(212, 168, 87, 0.55);
}

/* --- 响应式 --------------------------------------------------------- */
@media (max-width: 1280px) {
  .services-grid,
  .advantage-grid,
  .experience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .other-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .process-timeline {
    grid-template-columns: repeat(4, 1fr);
    gap: 32px 16px;
  }
  .process-timeline::before {
    display: none;
  }
  .process-step {
    padding-top: 60px;
  }
}

@media (max-width: 1024px) {
  .section {
    padding: 80px 0;
  }
  .nav-list,
  .nav-cta {
    display: none;
  }
  .nav-burger {
    display: flex;
  }
  .mobile-menu.is-open {
    display: flex;
  }
  .overview-grid,
  .contact-grid,
  .footer-main {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .overview-visual {
    height: 400px;
    max-width: 480px;
    margin: 0 auto;
  }
  .other-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .hero-trust {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 768px) {
  :root {
    --container-pad: 20px;
  }
  .section {
    padding: 64px 0;
  }
  .hero-content {
    padding: 40px 0 80px;
  }
  .hero-trust {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .hero-trust strong {
    font-size: 24px;
  }
  .services-grid,
  .advantage-grid,
  .experience-grid {
    grid-template-columns: 1fr;
  }
  .other-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-timeline {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .process-timeline::before {
    display: none;
  }
  .process-step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 20px;
    background: #ffffff;
    border: 1px solid var(--brand-line);
    border-radius: var(--radius-md);
    text-align: left;
  }
  .process-dot {
    position: static;
    transform: none;
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .process-step:hover .process-dot {
    transform: scale(1.05);
  }
  .process-body {
    flex: 1;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .footer-contact {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    justify-content: center;
  }
  .logo {
    gap: 10px;
  }
  .logo-mark {
    font-size: 18px;
  }
  .logo-key {
    font-size: 13px;
  }
  .logo-divider {
    height: 18px;
  }
  .experience-industries {
    padding: 20px;
  }
  .back-top {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 32px;
  }
  .hero-eyebrow {
    font-size: 12px;
  }
  .section-title {
    font-size: 26px;
  }
  .overview-stat-num {
    font-size: 36px;
  }
  .overview-stat-suffix {
    font-size: 20px;
  }
}

/* --- 打印优化 ------------------------------------------------------- */
@media print {
  .nav,
  .back-top,
  .hero-bg,
  .hero-scroll {
    display: none;
  }
  .hero {
    min-height: auto;
    background: none;
    color: var(--text-primary);
  }
  .hero-title,
  .section-title {
    color: var(--text-primary);
  }
  .section {
    padding: 40px 0;
  }
}