/* 花大姐官网 — 高端大气 · 点亮慢生活 */
:root {
  --color-primary: #0D9488;
  --color-primary-dark: #0F766E;
  --color-accent: #D4A574;
  --color-bg: #FAFAF9;
  --color-bg-warm: #F5F3F0;
  --color-text: #1C1917;
  --color-text-muted: #57534E;
  --color-border: #E7E5E4;
  --font-serif: 'Noto Serif SC', 'Source Han Serif CN', 'SimSun', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --radius: 12px;
  --radius-lg: 24px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 32px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.04);
  transition: padding 0.3s ease;
}

.nav {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 20px;
}

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 40px;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #F0FDFA 0%, #F5F3F0 40%, #FAFAF9 100%);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.4;
  background-image: radial-gradient(circle at 1px 1px, rgba(13,148,136,0.08) 1px, transparent 0);
  background-size: 40px 40px;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
}

.hero-sub {
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 500;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(42px, 8vw, 72px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 17px;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  line-height: 1.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 40px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(13,148,136,0.3);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(6px); }
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Services */
.services {
  padding: 100px 0 120px;
  background: #fff;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 600;
  text-align: center;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-sub {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 17px;
  margin-bottom: 56px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.service-card {
  padding: 36px 28px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13,148,136,0.2);
}

.service-icon {
  width: 56px;
  height: 56px;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-card h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.service-card p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Philosophy */
.philosophy {
  padding: 100px 0 120px;
  background: linear-gradient(180deg, var(--color-bg-warm) 0%, var(--color-bg) 100%);
}

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

.philosophy-lead {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 20px;
}

.philosophy-content p {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.75;
}

.philosophy-list {
  list-style: none;
}

.philosophy-list li {
  font-size: 16px;
  color: var(--color-text-muted);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.6;
}

.philosophy-list li:last-child {
  border-bottom: none;
}

.philosophy-list strong {
  color: var(--color-primary);
  font-weight: 600;
  margin-right: 8px;
}

.philosophy-card {
  background: #fff;
  padding: 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--color-border);
}

.philosophy-icon {
  font-size: 64px;
  margin-bottom: 24px;
}

.philosophy-card p {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
}

/* Miniapp */
.miniapp {
  padding: 100px 0 120px;
  background: #fff;
}

.miniapp-inner {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.miniapp-desc {
  color: var(--color-text-muted);
  font-size: 16px;
  margin-bottom: 40px;
}

.qrcode-placeholder {
  margin-bottom: 24px;
}

.qrcode-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 200px;
  height: 200px;
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  font-size: 14px;
}

.qrcode-box span {
  font-weight: 500;
  margin-bottom: 4px;
}

.qrcode-box small {
  font-size: 12px;
  opacity: 0.8;
}

.miniapp-tip {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Footer */
.footer {
  padding: 48px 24px;
  background: var(--color-text);
  color: rgba(255,255,255,0.8);
  text-align: center;
}

.footer-inner {
  max-width: 600px;
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: #fff;
}

.footer-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer-tagline {
  font-size: 14px;
  margin-bottom: 8px;
  color: rgba(255,255,255,0.6);
}

.footer-icp {
  font-size: 13px;
  margin-bottom: 12px;
}

.footer-icp a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
}

.footer-icp a:hover {
  color: rgba(255,255,255,0.9);
}

.footer-copy {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* AOS-like simple animation */
[data-aos] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="fade-right"] {
  transform: translateX(-24px);
}

[data-aos="fade-right"].aos-visible {
  transform: translateX(0);
}

[data-aos="fade-left"] {
  transform: translateX(24px);
}

[data-aos="fade-left"].aos-visible {
  transform: translateX(0);
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    padding: 24px;
    box-shadow: var(--shadow-lg);
    gap: 16px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .philosophy-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .philosophy-visual {
    order: -1;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }
}