/* mirror_flow:p6_ai_generated */
@charset "utf-8";

/* ============================================================
   广州良玉天成品牌策划有限公司 - 主样式表
   站点ID: 150
   保存路径: style/css/style.css
   ============================================================ */

/* ---------- CSS 变量定义 ---------- */
:root {
  --theme-color: #c8a45c;
  --theme-color2: #8b6914;
  --theme-color-light: #f0e4cc;
  --theme-color-dark: #5c3d0e;
  --accent-color: #d4af37;
  --text-color: #333333;
  --text-color-light: #666666;
  --text-color-lighter: #999999;
  --light-color: #fafaf7;
  --bg-light: #f5f2ed;
  --bg-cream: #fdfaf4;
  --white: #ffffff;
  --black: #1a1a1a;
  --border-color: #e5e0d5;
  --border-light: #f0ebe0;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-primary: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  --font-secondary: "Georgia", "Times New Roman", "STSong", "SimSun", serif;
  --font-en: "Playfair Display", "Georgia", serif;
  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 15px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 22px;
  --font-size-2xl: 28px;
  --font-size-3xl: 36px;
  --font-size-4xl: 44px;
  --font-size-hero: 52px;
  --line-height-tight: 1.3;
  --line-height-base: 1.6;
  --line-height-loose: 1.8;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 80px;
  --spacing-section: 100px;
  --container-max: 1280px;
  --container-padding: 20px;
  --header-height: 76px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-slower: 0.8s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--text-color);
  background-color: var(--white);
  overflow-x: hidden;
  min-width: 320px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul,
ol {
  list-style: none;
}

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

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

::selection {
  background-color: var(--theme-color);
  color: var(--white);
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-color-lighter);
}

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

.container-sm {
  max-width: 960px;
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-lg {
  max-width: 1400px;
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ---------- 辅助类 ---------- */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.text-theme {
  color: var(--theme-color);
}

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

.text-lighter {
  color: var(--text-color-lighter);
}

.text-white {
  color: var(--white);
}

.fw-400 {
  font-weight: 400;
}

.fw-500 {
  font-weight: 500;
}

.fw-600 {
  font-weight: 600;
}

.fw-700 {
  font-weight: 700;
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.mb-2xl {
  margin-bottom: var(--spacing-2xl);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mt-2xl {
  margin-top: var(--spacing-2xl);
}

.section-padding {
  padding-top: var(--spacing-section);
  padding-bottom: var(--spacing-section);
}

.bg-light {
  background-color: var(--bg-light);
}

.bg-cream {
  background-color: var(--bg-cream);
}

.bg-white {
  background-color: var(--white);
}

.bg-dark {
  background-color: var(--black);
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 32px;
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
  letter-spacing: 0.02em;
}

.btn-primary {
  background-color: var(--theme-color);
  color: var(--white);
  border: 1px solid var(--theme-color);
}

.btn-primary:hover {
  background-color: var(--theme-color-dark);
  border-color: var(--theme-color-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background-color: transparent;
  color: var(--theme-color);
  border: 1px solid var(--theme-color);
}

.btn-outline:hover {
  background-color: var(--theme-color);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-light {
  background-color: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
  background-color: var(--white);
  color: var(--text-color);
  border-color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-dark {
  background-color: var(--black);
  color: var(--white);
  border: 1px solid var(--black);
}

.btn-dark:hover {
  background-color: #333;
  border-color: #333;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-sm {
  padding: 9px 20px;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 16px 40px;
  font-size: var(--font-size-md);
  border-radius: var(--radius-md);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-arrow::after {
  content: "\2192";
  font-size: 1.1em;
  transition: transform var(--transition-fast);
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ---------- 顶部导航 ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
  height: var(--header-height);
}

.header.scrolled {
  border-bottom-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  z-index: 1001;
}

.logo img {
  height: 42px;
  width: auto;
}

.logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--theme-color-dark);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.logo-text small {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 400;
  color: var(--text-color-lighter);
  letter-spacing: 0.06em;
  margin-top: 1px;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-color);
  padding: 8px 0;
  letter-spacing: 0.03em;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--theme-color);
  transition: width var(--transition-base);
  border-radius: 1px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--theme-color);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-color);
  border-radius: 1px;
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- 首页 Hero 横幅 ---------- */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--black);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 2;
  padding-top: 120px;
  padding-bottom: 80px;
}

.hero-content {
  max-width: 640px;
}

.hero-subtitle {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--accent-color);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-lg);
  padding: 8px 20px;
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 50px;
  background: rgba(212, 175, 55, 0.08);
}

.hero-title {
  font-family: var(--font-secondary);
  font-size: var(--font-size-hero);
  font-weight: 700;
  line-height: var(--line-height-tight);
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  letter-spacing: 0.02em;
}

.hero-title span {
  color: var(--accent-color);
  position: relative;
}

.hero-desc {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  line-height: var(--line-height-loose);
  margin-bottom: var(--spacing-2xl);
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-xs);
  letter-spacing: 0.06em;
  animation: bounceDown 2s infinite;
}

.hero-scroll::before {
  content: "";
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.6), transparent);
}

@keyframes bounceDown {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(8px);
  }
}

/* ---------- 章节标题 ---------- */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--theme-color);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  position: relative;
}

.section-label::before,
.section-label::after {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background-color: var(--theme-color);
  vertical-align: middle;
  margin: 0 12px;
  opacity: 0.5;
}

.section-title {
  font-family: var(--font-secondary);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--text-color);
  line-height: var(--line-height-tight);