/* ============================================================
   大牛游戏号商门户网站 | 全站统一样式
   Luxury Premium · 深黑金品牌体系
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@500;700;900&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

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

:root {
  --color-bg: #0D0D0D;
  --color-bg-elev: #161616;
  --color-bg-soft: #1E1E1E;
  --color-bg-deep: #0A0A0A;
  --color-gold: #C9A962;
  --color-gold-light: #E4C98F;
  --color-gold-dark: #A07F45;
  --color-orange: #FF6B35;
  --color-orange-light: #FF8C5A;
  --color-white: #FFFFFF;
  --color-text: #E8E6E1;
  --color-text-soft: #B5B1A8;
  --color-text-mute: #7A766D;
  --color-border: rgba(201, 169, 98, 0.12);
  --color-border-gold: rgba(201, 169, 98, 0.4);
  --gradient-gold: linear-gradient(135deg, #E4C98F 0%, #C9A962 50%, #A07F45 100%);
  --gradient-gold-text: linear-gradient(135deg, #FFF3D4 0%, #E4C98F 35%, #C9A962 65%, #A07F45 100%);
  --gradient-bg-hero: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(201, 169, 98, 0.14) 0%, rgba(201, 169, 98, 0.04) 35%, transparent 70%);
  --gradient-card: linear-gradient(180deg, rgba(201, 169, 98, 0.06) 0%, rgba(201, 169, 98, 0.01) 100%);
  --shadow-gold: 0 10px 40px -10px rgba(201, 169, 98, 0.35);
  --shadow-card: 0 8px 30px -12px rgba(0, 0, 0, 0.6);
  --shadow-card-hover: 0 20px 50px -15px rgba(201, 169, 98, 0.25), 0 8px 25px -8px rgba(0,0,0,0.7);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --container: 1200px;
  --header-h: 76px;
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html { scroll-behavior: smooth; }

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

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(201, 169, 98, 0.05) 1px, transparent 0);
  background-size: 32px 32px;
  opacity: 0.6;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}
a:hover { color: var(--color-gold-light); }

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

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

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.text-gradient-gold {
  background: var(--gradient-gold-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--color-border-gold);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--color-gold-light);
  background: rgba(201, 169, 98, 0.06);
  margin-bottom: 20px;
}
.eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gradient-gold);
  box-shadow: 0 0 10px rgba(201, 169, 98, 0.6);
}

.section-title {
  text-align: center;
  margin-bottom: 64px;
}
.section-title h2 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 44px;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 14px;
  color: var(--color-white);
}
.section-title h2 span { background: var(--gradient-gold-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.section-title p {
  font-size: 16px;
  color: var(--color-text-soft);
  max-width: 640px;
  margin: 0 auto;
}

section { position: relative; padding: 120px 0; }
@media (max-width: 768px) { section { padding: 80px 0; } .section-title h2 { font-size: 32px; } }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--gradient-gold);
  color: #1A1408;
  box-shadow: 0 6px 20px -6px rgba(201, 169, 98, 0.55), inset 0 1px 0 rgba(255,255,255,0.25);
}
.btn-primary::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.7s var(--ease);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -8px rgba(201, 169, 98, 0.65), inset 0 1px 0 rgba(255,255,255,0.3);
}
.btn-primary:hover::after { transform: translateX(120%); }

.btn-ghost {
  border: 1.5px solid var(--color-border-gold);
  color: var(--color-gold-light);
  background: rgba(201, 169, 98, 0.04);
}
.btn-ghost:hover {
  background: rgba(201, 169, 98, 0.12);
  border-color: var(--color-gold);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-sm { padding: 10px 20px; font-size: 13px; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: all 0.35s var(--ease);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(0);
}
.site-header.is-sticky {
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--color-border);
  box-shadow: 0 8px 30px -15px rgba(0,0,0,0.5);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand svg { height: 40px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 10px 18px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-text-soft);
  border-radius: 8px;
  position: relative;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--color-gold-light);
  background: rgba(201, 169, 98, 0.08);
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 20px; right: 20px; bottom: 6px;
  height: 2px;
  background: var(--gradient-gold);
  border-radius: 2px;
}

.header-cta { display: flex; align-items: center; gap: 10px; }

.hamburger {
  display: none;
  width: 42px; height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--color-gold-light);
  flex-direction: column;
  gap: 5px;
}
.hamburger span {
  width: 22px; height: 2px;
  background: var(--color-gold-light);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  top: var(--header-h); right: -100%;
  width: 82%; max-width: 360px;
  height: calc(100vh - var(--header-h));
  background: rgba(13, 13, 13, 0.97);
  backdrop-filter: blur(20px);
  border-left: 1px solid var(--color-border);
  z-index: 99;
  transition: right 0.4s var(--ease);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-nav.is-open { right: 0; }
.mobile-nav a {
  padding: 16px 18px;
  border-radius: 10px;
  font-size: 16px;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.mobile-nav a:hover { background: rgba(201, 169, 98, 0.08); color: var(--color-gold-light); }
.mobile-nav-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 98;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}
.mobile-nav-overlay.is-open { opacity: 1; pointer-events: auto; }

@media (max-width: 1024px) {
  .main-nav, .header-cta .btn { display: none; }
  .hamburger { display: flex; }
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: 100px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-bg-hero);
}
.hero::before {
  content: '';
  position: absolute;
  top: -20%; left: -10%;
  width: 60%; height: 80%;
  background: radial-gradient(ellipse at center, rgba(201, 169, 98, 0.18) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -20%; right: -10%;
  width: 55%; height: 75%;
  background: radial-gradient(ellipse at center, rgba(255, 107, 53, 0.14) 0%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}
.hero-subtitle {
  font-size: 15px;
  color: var(--color-gold-light);
  letter-spacing: 6px;
  margin-bottom: 24px;
  font-weight: 500;
}
.hero-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 74px;
  line-height: 1.12;
  letter-spacing: 2px;
  margin-bottom: 28px;
  color: var(--color-white);
}
.hero-title .grad { background: var(--gradient-gold-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-title .slash {
  color: var(--color-gold);
  opacity: 0.7;
  font-weight: 400;
  margin: 0 6px;
}
.hero-desc {
  font-size: 18px;
  color: var(--color-text-soft);
  line-height: 1.9;
  margin-bottom: 44px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 68px;
}
.hero-badges {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  background: rgba(201, 169, 98, 0.03);
}
.hero-badge-num {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 26px;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-badge-lbl {
  font-size: 13px;
  color: var(--color-text-soft);
  line-height: 1.4;
}
.hero-badge-lbl b { color: var(--color-text); display: block; }

@media (max-width: 768px) {
  .hero-title { font-size: 42px; }
  .hero-desc { font-size: 16px; }
  .hero-cta .btn { width: 100%; }
  .hero-badges { gap: 12px; }
  .hero-badge { flex: 1 1 calc(50% - 12px); }
}

/* ===== 三大业务卡片 ===== */
.biz-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
  margin-top: -80px;
  z-index: 5;
}
.biz-card {
  position: relative;
  padding: 40px 32px 36px;
  background: var(--gradient-card), var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.45s var(--ease);
}
.biz-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 1px;
  background: linear-gradient(135deg, rgba(201,169,98,0.4) 0%, transparent 40%, transparent 60%, rgba(201,169,98,0.3) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.6;
  pointer-events: none;
}
.biz-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-border-gold);
}
.biz-card:hover::before { opacity: 1; }
.biz-card-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  background: var(--gradient-gold);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 26px;
  box-shadow: 0 8px 22px -6px rgba(201, 169, 98, 0.5);
  color: #1A1408;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 26px;
}
.biz-card h3 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 26px;
  color: var(--color-white);
  margin-bottom: 12px;
}
.biz-card p {
  font-size: 14.5px;
  color: var(--color-text-soft);
  line-height: 1.8;
  margin-bottom: 24px;
  min-height: 5.4em;
}
.biz-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--color-border);
  padding-top: 22px;
}
.qr-hover {
  position: relative;
  display: inline-flex;
}
.qr-popover {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 14px);
  transform: translateX(-50%) translateY(8px);
  padding: 12px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 16px 40px -10px rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s var(--ease);
  z-index: 10;
  pointer-events: none;
}
.qr-popover::after {
  content: '';
  position: absolute;
  left: 50%; top: 100%;
  transform: translateX(-50%);
  border: 8px solid transparent;
  border-top-color: #fff;
}
.qr-popover img, .qr-popover svg { width: 150px; height: 150px; }
.qr-popover .qr-tip {
  display: block;
  text-align: center;
  color: #333;
  font-size: 12px;
  margin-top: 6px;
  font-weight: 600;
}
.qr-hover:hover .qr-popover {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.biz-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-gold-light);
  font-size: 14px;
  font-weight: 600;
}
.biz-link::after {
  content: '→';
  transition: transform 0.25s var(--ease);
}
.biz-link:hover::after { transform: translateX(4px); }

@media (max-width: 1024px) { .biz-cards { grid-template-columns: 1fr; margin-top: -40px; } }

/* ===== 核心优势 ===== */
.advantages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.advantage {
  position: relative;
  padding: 44px 34px;
  border-radius: var(--radius-xl);
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  transition: all 0.4s var(--ease);
}
.advantage:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-gold);
  box-shadow: 0 20px 50px -18px rgba(201, 169, 98, 0.25);
}
.advantage-num {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 88px;
  line-height: 1;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  opacity: 0.9;
  margin-bottom: 16px;
  letter-spacing: -2px;
}
.advantage h3 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 24px;
  color: var(--color-white);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.advantage h3 i {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(201, 169, 98, 0.12);
  color: var(--color-gold-light);
  font-style: normal;
  font-size: 20px;
}
.advantage p {
  color: var(--color-text-soft);
  font-size: 15px;
  line-height: 1.85;
}
@media (max-width: 1024px) { .advantages { grid-template-columns: 1fr; } }

/* ===== 游戏专区 ===== */
.game-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.game-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  transition: all 0.5s var(--ease);
  cursor: pointer;
}
.game-card:hover {
  transform: translateY(-10px) scale(1.01);
  box-shadow: 0 30px 60px -20px rgba(201, 169, 98, 0.35);
  border-color: var(--color-border-gold);
}
.game-card-img {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  position: relative;
}
.game-card-img svg {
  width: 100%; height: 100%;
  transition: transform 0.7s var(--ease);
}
.game-card:hover .game-card-img svg { transform: scale(1.06); }
.game-card-img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(13,13,13,0.95) 100%);
  pointer-events: none;
}
.game-card-body {
  padding: 28px 28px 30px;
  position: relative;
  z-index: 2;
  margin-top: -60px;
}
.game-card-body h3 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 28px;
  color: var(--color-white);
  margin-bottom: 10px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.game-card-body h3 small {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gold-light);
  letter-spacing: 1px;
  opacity: 0.85;
}
.game-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.game-card-tags span {
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(201, 169, 98, 0.1);
  border: 1px solid rgba(201, 169, 98, 0.25);
  color: var(--color-gold-light);
}
.game-card-body p {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.75;
}
@media (max-width: 1024px) { .game-grid { grid-template-columns: 1fr; } }

/* ===== 服务流程 ===== */
.process-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.process-step {
  position: relative;
  padding: 28px 20px;
  text-align: center;
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 48px;
  right: -12px;
  width: 24px; height: 2px;
  background: var(--gradient-gold);
  opacity: 0.5;
}
.process-step-icon {
  width: 76px; height: 76px;
  margin: 0 auto 22px;
  border-radius: 50%;
  background: var(--color-bg-elev);
  border: 1.5px solid var(--color-border-gold);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  transition: all 0.4s var(--ease);
}
.process-step:hover .process-step-icon {
  background: var(--gradient-gold);
  border-color: transparent;
  transform: scale(1.05);
  box-shadow: var(--shadow-gold);
}
.process-step-icon .step-num {
  position: absolute;
  top: -6px; right: -6px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--gradient-gold);
  color: #1A1408;
  font-weight: 900;
  font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif);
}
.process-step-icon svg, .process-step-icon i {
  width: 34px; height: 34px;
  color: var(--color-gold-light);
  transition: color 0.3s;
  font-style: normal;
  font-size: 28px;
  line-height: 1;
}
.process-step:hover .process-step-icon svg,
.process-step:hover .process-step-icon i { color: #1A1408; }
.process-step h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  color: var(--color-white);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 1.7;
}
@media (max-width: 1024px) {
  .process-flow { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .process-step:not(:last-child)::after { display: none; }
  .process-step:last-child { grid-column: 1 / -1; }
}
@media (max-width: 520px) { .process-flow { grid-template-columns: 1fr; } }

/* ===== 保障承诺 ===== */
.promise {
  padding: 60px;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(201, 169, 98, 0.05) 0%, rgba(201, 169, 98, 0) 100%), var(--color-bg-elev);
  border: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}
.promise-item { text-align: center; position: relative; }
.promise-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 10%; bottom: 10%;
  right: -20px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--color-border-gold), transparent);
}
.promise-badge {
  width: 96px; height: 96px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.15), transparent 50%),
    var(--gradient-gold);
  display: flex; align-items: center; justify-content: center;
  color: #1A1408;
  font-size: 42px;
  font-style: normal;
  box-shadow: 0 14px 36px -10px rgba(201, 169, 98, 0.5), inset 0 1px 0 rgba(255,255,255,0.3);
  position: relative;
}
.promise-badge::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1px dashed rgba(201, 169, 98, 0.4);
  animation: spin 18s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.promise-item h3 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 22px;
  color: var(--color-white);
  margin-bottom: 10px;
}
.promise-item p {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.8;
  max-width: 320px;
  margin: 0 auto;
}
@media (max-width: 1024px) {
  .promise { grid-template-columns: 1fr; padding: 40px 24px; gap: 36px; }
  .promise-item:not(:last-child)::after { display: none; }
}

/* ===== 数据口碑 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 72px;
}
.stat-card {
  padding: 36px 28px;
  border-radius: var(--radius-xl);
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: var(--gradient-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease);
}
.stat-card:hover { border-color: var(--color-border-gold); transform: translateY(-4px); }
.stat-card:hover::before { transform: scaleX(1); }
.stat-num {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 52px;
  line-height: 1.1;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: -1px;
}
.stat-num sup {
  font-size: 22px;
  vertical-align: top;
  margin-left: 2px;
}
.stat-lbl {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-soft);
  font-weight: 500;
  letter-spacing: 0.5px;
}
.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial {
  padding: 30px 28px;
  border-radius: var(--radius-xl);
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  position: relative;
}
.testimonial::before {
  content: '"';
  position: absolute;
  top: 10px; right: 22px;
  font-family: var(--font-serif);
  font-size: 90px;
  line-height: 1;
  color: var(--color-gold);
  opacity: 0.12;
  font-weight: 900;
}
.testimonial-stars {
  color: var(--color-gold-light);
  margin-bottom: 14px;
  font-size: 15px;
  letter-spacing: 2px;
}
.testimonial-text {
  font-size: 14.5px;
  color: var(--color-text);
  line-height: 1.85;
  margin-bottom: 20px;
  min-height: 5.5em;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}
.testimonial-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex; align-items: center; justify-content: center;
  color: #1A1408;
  font-weight: 900;
  font-family: var(--font-serif);
}
.testimonial-name { font-weight: 600; color: var(--color-white); font-size: 14px; }
.testimonial-meta { font-size: 12px; color: var(--color-text-mute); }
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card { padding: 24px 16px; }
  .stat-num { font-size: 36px; }
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  border-radius: var(--radius-lg);
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: border-color 0.3s, background 0.3s;
}
.faq-item.is-open { border-color: var(--color-border-gold); background: var(--color-bg-soft); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  cursor: pointer;
  user-select: none;
  transition: background 0.3s;
}
.faq-q:hover { background: rgba(201, 169, 98, 0.04); }
.faq-q h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 17px;
  color: var(--color-white);
  padding-right: 20px;
  line-height: 1.5;
}
.faq-q strong {
  color: var(--color-gold-light);
  font-weight: 700;
  margin-right: 12px;
}
.faq-toggle {
  flex-shrink: 0;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(201, 169, 98, 0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-gold-light);
  transition: all 0.3s var(--ease);
  font-size: 20px;
  font-weight: 400;
}
.faq-item.is-open .faq-toggle {
  background: var(--gradient-gold);
  color: #1A1408;
  transform: rotate(45deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--ease);
}
.faq-a-inner {
  padding: 0 28px 24px 54px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--color-text-soft);
}
@media (max-width: 768px) {
  .faq-q { padding: 18px 20px; }
  .faq-q h4 { font-size: 15px; }
  .faq-a-inner { padding: 0 20px 20px 20px; font-size: 14px; }
}

/* ===== 二维码聚合 / 页脚转化 ===== */
.qr-section {
  padding: 64px 56px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(201, 169, 98, 0.08) 0%, transparent 50%, rgba(255, 107, 53, 0.06) 100%),
    var(--color-bg-elev);
  border: 1px solid var(--color-border-gold);
  position: relative;
  overflow: hidden;
}
.qr-section::before,
.qr-section::after {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  pointer-events: none;
}
.qr-section::before { background: rgba(201, 169, 98, 0.25); top: -150px; left: -100px; }
.qr-section::after { background: rgba(255, 107, 53, 0.2); bottom: -150px; right: -100px; }

.qr-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
  z-index: 2;
}
.qr-item {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  background: rgba(13, 13, 13, 0.55);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all 0.35s var(--ease);
  backdrop-filter: blur(10px);
}
.qr-item:hover { border-color: var(--color-border-gold); transform: translateY(-4px); }
.qr-item-img {
  width: 180px; height: 180px;
  margin: 0 auto 20px;
  padding: 10px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 10px 28px -8px rgba(0,0,0,0.4);
}
.qr-item-img svg, .qr-item-img img { width: 100%; height: 100%; }
.qr-item h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  color: var(--color-white);
  margin-bottom: 6px;
}
.qr-item h3 i {
  font-style: normal;
  margin-right: 6px;
  font-size: 18px;
}
.qr-item p {
  font-size: 13px;
  color: var(--color-text-soft);
  margin-bottom: 14px;
}
.qr-item-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(201, 169, 98, 0.1);
  border: 1px solid var(--color-border-gold);
  color: var(--color-gold-light);
  font-size: 13px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.5px;
}
@media (max-width: 1024px) {
  .qr-section { padding: 40px 24px; }
  .qr-grid { grid-template-columns: 1fr; }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-deep);
  border-top: 1px solid var(--color-border);
  padding: 72px 0 36px;
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-brand .brand { margin-bottom: 20px; }
.footer-brand p {
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 320px;
}
.footer-socials {
  display: flex;
  gap: 10px;
}
.footer-socials a {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-soft);
  font-style: normal;
  transition: all 0.3s;
}
.footer-socials a:hover { color: var(--color-gold-light); border-color: var(--color-border-gold); background: rgba(201,169,98,0.08); }

.footer-col h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-white);
  margin-bottom: 20px;
}
.footer-col a {
  display: block;
  padding: 7px 0;
  font-size: 14px;
  color: var(--color-text-soft);
  transition: color 0.25s, padding-left 0.25s;
}
.footer-col a:hover { color: var(--color-gold-light); padding-left: 4px; }

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}
.footer-contact p i {
  flex-shrink: 0;
  width: 22px;
  color: var(--color-gold);
  text-align: center;
  font-style: normal;
  margin-top: 3px;
}
.footer-contact strong {
  color: var(--color-white);
  font-weight: 600;
  display: block;
}

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--color-text-mute);
}
.footer-bottom-links {
  display: flex;
  gap: 22px;
  font-size: 13px;
}
.footer-bottom-links a { color: var(--color-text-mute); }
.footer-bottom-links a:hover { color: var(--color-gold-light); }

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== 二维码弹窗 ===== */
.qr-modal {
  position: fixed; inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s var(--ease);
}
.qr-modal.is-open { opacity: 1; visibility: visible; }
.qr-modal-inner {
  width: 100%;
  max-width: 440px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  text-align: center;
  position: relative;
  transform: translateY(20px) scale(0.96);
  transition: transform 0.45s var(--ease);
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.8), 0 0 0 1px rgba(201,169,98,0.1);
}
.qr-modal.is-open .qr-modal-inner { transform: translateY(0) scale(1); }
.qr-modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  color: var(--color-text-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  transition: all 0.25s;
}
.qr-modal-close:hover { background: rgba(255,107,53,0.15); color: var(--color-orange-light); }

.qr-modal-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 26px;
  color: var(--color-white);
  margin-bottom: 8px;
}
.qr-modal-sub {
  color: var(--color-text-soft);
  font-size: 14px;
  margin-bottom: 28px;
}
.qr-modal-img {
  width: 240px; height: 240px;
  margin: 0 auto 24px;
  padding: 14px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 16px 40px -12px rgba(0,0,0,0.5);
}
.qr-modal-img svg, .qr-modal-img img { width: 100%; height: 100%; }
.qr-modal-tips {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 20px 20px 0;
  border-top: 1px solid var(--color-border);
  margin-top: 12px;
}
.qr-modal-tips div {
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px;
  color: var(--color-text-soft);
}
.qr-modal-tips div i {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(201,169,98,0.15);
  color: var(--color-gold-light);
  display: flex; align-items: center; justify-content: center;
  font-style: normal;
  font-size: 11px;
  flex-shrink: 0;
}
.qr-modal-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
  padding: 4px;
  background: var(--color-bg-deep);
  border: 1px solid var(--color-border);
  border-radius: 999px;
}
.qr-modal-tabs button {
  flex: 1;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-soft);
  transition: all 0.3s;
}
.qr-modal-tabs button.active {
  background: var(--gradient-gold);
  color: #1A1408;
  box-shadow: 0 4px 14px -2px rgba(201,169,98,0.5);
}

/* ===== 入场动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  will-change: transform, opacity;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal.delay-1 { transition-delay: 0.08s; }
.reveal.delay-2 { transition-delay: 0.16s; }
.reveal.delay-3 { transition-delay: 0.24s; }
.reveal.delay-4 { transition-delay: 0.32s; }
.reveal.delay-5 { transition-delay: 0.4s; }

/* ===== Hero 动效 ===== */
.hero-subtitle,
.hero-title,
.hero-desc,
.hero-cta,
.hero-badges {
  opacity: 0;
  animation: heroIn 0.9s var(--ease) forwards;
}
.hero-subtitle { animation-delay: 0.1s; transform: translateY(15px); }
.hero-title { animation-delay: 0.2s; transform: translateY(20px); }
.hero-desc { animation-delay: 0.4s; transform: translateY(20px); }
.hero-cta { animation-delay: 0.55s; transform: translateY(20px); }
.hero-badges { animation-delay: 0.7s; transform: translateY(20px); }
@keyframes heroIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 详情页 ===== */
.page-hero {
  padding: calc(var(--header-h) + 80px) 0 80px;
  background: var(--gradient-bg-hero);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 50%; height: 80%;
  background: radial-gradient(ellipse, rgba(201,169,98,0.15), transparent 60%);
  filter: blur(40px);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; text-align: center; }
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-mute);
  font-size: 13px;
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--color-text-soft); }
.breadcrumb a:hover { color: var(--color-gold-light); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .cur { color: var(--color-gold-light); }

.page-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 56px;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.page-title span { background: var(--gradient-gold-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.page-subtitle {
  font-size: 18px;
  color: var(--color-text-soft);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.8;
}
@media (max-width: 768px) { .page-title { font-size: 38px; } }

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 0;
}
.feature-tile {
  padding: 28px 22px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all 0.35s var(--ease);
  text-align: center;
}
.feature-tile:hover { border-color: var(--color-border-gold); transform: translateY(-4px); background: rgba(201,169,98,0.05); }
.feature-tile .icon {
  width: 54px; height: 54px;
  margin: 0 auto 16px;
  border-radius: 14px;
  background: rgba(201,169,98,0.12);
  color: var(--color-gold-light);
  display: flex; align-items: center; justify-content: center;
  font-style: normal;
  font-size: 26px;
}
.feature-tile h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 17px;
  color: var(--color-white);
  margin-bottom: 8px;
}
.feature-tile p {
  font-size: 13px;
  color: var(--color-text-soft);
  line-height: 1.7;
}
@media (max-width: 1024px) { .features-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .features-grid { grid-template-columns: 1fr; } }

.comparison-box {
  padding: 36px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}
.comparison-row {
  display: grid;
  grid-template-columns: 160px 1fr 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px dashed var(--color-border);
  align-items: center;
}
.comparison-row:last-child { border-bottom: 0; }
.comparison-row .label {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-white);
}
.comparison-bar {
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  position: relative;
  overflow: hidden;
}
.comparison-bar span {
  display: block;
  height: 100%;
  border-radius: 999px;
}
.comparison-bar.market span {
  width: 65%;
  background: linear-gradient(90deg, #4B5563, #6B7280);
}
.comparison-bar.daniu span {
  width: 95%;
  background: var(--gradient-gold);
  box-shadow: 0 0 18px rgba(201,169,98,0.5);
}
.comparison-cell span { display: block; margin-top: 8px; font-size: 13px; font-weight: 600; }
.comparison-cell.market span { color: #9CA3AF; }
.comparison-cell.daniu span { color: var(--color-gold-light); }
@media (max-width: 768px) {
  .comparison-box { padding: 24px 18px; }
  .comparison-row { grid-template-columns: 1fr; }
}

.guarantee-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.guarantee-card {
  padding: 32px 30px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-elev);
  border-left: 4px solid var(--color-gold);
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  transition: all 0.3s var(--ease);
}
.guarantee-card:hover { box-shadow: 0 20px 40px -18px rgba(201,169,98,0.3); transform: translateY(-3px); }
.guarantee-card h4 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 20px;
  color: var(--color-white);
  margin-bottom: 10px;
  display: flex; align-items: center; gap: 10px;
}
.guarantee-card h4 i {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: rgba(255, 107, 53, 0.15);
  color: var(--color-orange-light);
  display: inline-flex; align-items: center; justify-content: center;
  font-style: normal;
  font-size: 18px;
}
.guarantee-card p {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.85;
}
.guarantee-card .amt {
  display: block;
  margin-top: 14px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 22px;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
@media (max-width: 768px) { .guarantee-cards { grid-template-columns: 1fr; } }

.timeline {
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-gold-light), rgba(201,169,98,0.15));
}
.timeline-item {
  position: relative;
  padding: 0 0 44px 28px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -34px; top: 4px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--gradient-gold);
  box-shadow: 0 0 0 5px rgba(201,169,98,0.12), 0 4px 12px rgba(201,169,98,0.4);
}
.timeline-time {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 13px;
  color: var(--color-gold-light);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.timeline-item h4 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 20px;
  color: var(--color-white);
  margin-bottom: 8px;
}
.timeline-item p {
  color: var(--color-text-soft);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ===== 辅助类 ===== */
.mt-0 { margin-top: 0; }
.mt-16 { margin-top: 16px; }
.mt-32 { margin-top: 32px; }
.mt-64 { margin-top: 64px; }
.mb-0 { margin-bottom: 0; }
.text-center { text-align: center; }
.wrap-biz { padding-top: 0 !important; }

/* 滚动条美化 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg-deep); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-gold-dark), var(--color-gold));
  border-radius: 999px;
  border: 2px solid var(--color-bg-deep);
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, var(--color-gold), var(--color-gold-light)); }