/* roulang page: index */
:root {
  --bg-primary: #0b0e14;
  --bg-card: #151a24;
  --bg-hover: #1d2330;
  --bg-deeper: #080a0f;
  --bg-section-alt: #11151e;
  --gold: #c6a15b;
  --gold-light: #d4af6a;
  --gold-dark: #a07a3f;
  --red: #8e3b46;
  --red-light: #e07a5f;
  --blue: #3e6a8f;
  --text-main: #d8d4c9;
  --text-secondary: #9a917f;
  --text-title: #f2e6c9;
  --text-title2: #e3d5b8;
  --border-gold: rgba(198, 161, 91, 0.35);
  --border-gold-light: rgba(212, 175, 106, 0.75);
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-input: 8px;
  --radius-icon: 12px;
  --radius-badge: 999px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 24px rgba(198, 161, 91, 0.08);
  --shadow-btn: 0 0 20px rgba(212, 175, 106, 0.25);
  --transition: 0.3s ease;
  --container: 1200px;
  --section-gap: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background-color: var(--bg-primary);
  background-image: radial-gradient(ellipse at 30% 20%, rgba(198, 161, 91, 0.05) 0%, transparent 50%), radial-gradient(ellipse at 80% 80%, rgba(62, 106, 143, 0.04) 0%, transparent 50%);
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--gold-light);
}

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

input, select, textarea {
  font-family: inherit;
  font-size: 15px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: var(--section-gap) 0;
  position: relative;
}

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

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head .diamond {
  display: inline-block;
  color: var(--gold);
  font-size: 14px;
  margin-bottom: 8px;
  letter-spacing: 0.3em;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-title);
  letter-spacing: 0.02em;
  margin-bottom: 12px;
  line-height: 1.4;
}

.section-head p {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 66ch;
  margin: 0 auto;
  line-height: 1.7;
}

/* ========== 导航 ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  z-index: 1000;
  background: rgba(15, 17, 26, 0.45);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid rgba(198, 161, 91, 0.15);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.header.scrolled {
  background: rgba(11, 14, 20, 0.94);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.45);
}

.header .container {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-title);
  white-space: nowrap;
}

.logo i {
  color: var(--gold);
  font-size: 18px;
}

.logo:hover {
  color: var(--gold-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 15px;
  color: var(--text-main);
  position: relative;
  padding: 6px 0;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-search {
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
}

.nav-search input {
  width: 0;
  opacity: 0;
  padding: 0;
  border: none;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border-radius: var(--radius-btn);
  font-size: 14px;
  transition: width 0.4s ease, opacity 0.3s ease, padding 0.3s ease;
  outline: none;
}

.nav-search input::placeholder {
  color: var(--text-secondary);
}

.nav-search.active input {
  width: 180px;
  opacity: 1;
  padding: 8px 12px;
  border: 1px solid var(--border-gold);
}

.search-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  font-size: 15px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  transition: all 0.3s ease;
}

.search-toggle:hover {
  color: var(--gold);
  border-color: var(--border-gold);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  transition: all var(--transition);
  position: relative;
  line-height: 1.4;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
  color: var(--bg-primary);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #e0bc7c, #b58a4b);
  color: var(--bg-primary);
  box-shadow: var(--shadow-btn);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 0 10px rgba(212, 175, 106, 0.15);
}

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

.btn-outline:hover {
  background: rgba(198, 161, 91, 0.1);
  color: var(--gold-light);
  border-color: var(--gold-light);
}

.btn-outline:focus-visible {
  outline: 2px dashed var(--gold);
  outline-offset: 3px;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(198, 161, 91, 0.2);
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  transition: all 0.3s ease;
}

.hamburger:hover span {
  background: var(--gold);
}

.mobile-menu {
  position: fixed;
  top: 64px;
  left: 0;
  width: 100%;
  height: calc(100vh - 64px);
  background: rgba(11, 14, 20, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 40px 32px;
  gap: 8px;
  transform: translateX(100%);
  transition: transform 0.4s ease;
  overflow-y: auto;
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu a {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-title);
  padding: 16px 0;
  border-bottom: 1px solid rgba(198, 161, 91, 0.15);
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu a::before {
  content: "◆";
  font-size: 10px;
  color: var(--gold);
}

.mobile-menu a:hover {
  color: var(--gold-light);
}

/* ========== Hero ========== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  padding-top: 64px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-primary) 0%, rgba(11, 14, 20, 0.55) 40%, rgba(11, 14, 20, 0.65) 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 14, 20, 0.35) 0%, transparent 50%, rgba(11, 14, 20, 0.35) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 820px;
  padding: 0 24px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-badge);
  padding: 6px 18px;
  background: rgba(11, 14, 20, 0.5);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-title);
  letter-spacing: 0.02em;
  margin-bottom: 20px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
}

.hero h1 .h1-sub {
  display: block;
  font-size: 0.48em;
  font-weight: 400;
  color: var(--gold-light);
  margin-top: 10px;
  letter-spacing: 0.12em;
}

.hero-desc {
  font-size: 18px;
  color: #cbc4b0;
  line-height: 1.8;
  max-width: 620px;
  margin: 0 auto 36px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 1px;
  height: 40px;
  background: rgba(198, 161, 91, 0.4);
  overflow: hidden;
}

.hero-scroll::after {
  content: "";
  display: block;
  width: 100%;
  height: 12px;
  background: var(--gold);
  animation: scrollLine 1.6s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: translateY(-12px); }
  100% { transform: translateY(40px); }
}

.hero-badges {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 20px 24px 40px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(11, 14, 20, 0.65);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-badge);
  padding: 10px 22px 10px 14px;
  backdrop-filter: blur(6px);
  transition: transform 0.3s ease, border-color 0.3s ease;
  min-width: 0;
}

.hero-badge:hover {
  border-color: var(--gold-light);
  transform: translateY(-2px);
}

.hero-badge .icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(198, 161, 91, 0.12);
  color: var(--gold);
  font-size: 14px;
}

.hero-badge .text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.hero-badge .text strong {
  font-size: 14px;
  color: var(--text-title);
  font-weight: 600;
  white-space: nowrap;
}

.hero-badge .text span {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ========== 服务体系 ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.service-card:hover {
  background: var(--bg-hover);
  border-color: var(--border-gold-light);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.service-card .icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-icon);
  background: rgba(198, 161, 91, 0.1);
  border: 1px solid rgba(198, 161, 91, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 20px;
  transition: all 0.3s ease;
}

.service-card:hover .icon {
  background: rgba(198, 161, 91, 0.2);
  box-shadow: 0 0 20px rgba(198, 161, 91, 0.15);
}

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-title2);
  line-height: 1.4;
}

.service-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.service-card .more {
  font-size: 14px;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.service-card .more i {
  font-size: 12px;
  transition: transform 0.3s ease;
}

.service-card .more:hover {
  color: var(--gold-light);
  gap: 10px;
}

.service-card .more:hover i {
  transform: translateX(3px);
}

/* ========== 资讯区 ========== */
.articles-wrap {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}

.articles-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid rgba(198, 161, 91, 0.15);
  border-left: 3px solid var(--gold);
  border-radius: 12px;
  padding: 22px 24px;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.article-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-gold-light);
  transform: translateX(4px);
}

.article-date {
  flex-shrink: 0;
  text-align: center;
  min-width: 64px;
  padding: 8px 10px;
  background: rgba(198, 161, 91, 0.08);
  border-radius: var(--radius-btn);
  border: 1px solid rgba(198, 161, 91, 0.15);
}

.article-date .day {
  font-size: 24px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
}

.article-date .month {
  font-size: 12px;
  color: var(--text-secondary);
}

.article-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-title2);
  margin-bottom: 6px;
  line-height: 1.4;
}

.article-info h3 a {
  color: inherit;
}

.article-info h3 a:hover {
  color: var(--gold-light);
}

.article-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.articles-sidebar {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-gold);
  padding: 28px;
  position: sticky;
  top: 88px;
}

.sidebar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(198, 161, 91, 0.15);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-title i {
  color: var(--gold);
  font-size: 15px;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(62, 106, 143, 0.15);
  color: #9dc1dc;
  border-radius: var(--radius-badge);
  padding: 6px 16px;
  font-size: 13px;
  border: 1px solid rgba(62, 106, 143, 0.25);
  transition: all 0.3s ease;
  cursor: default;
}

.tag:hover {
  background: rgba(62, 106, 143, 0.25);
  border-color: rgba(62, 106, 143, 0.5);
}

.tag-gold {
  background: rgba(198, 161, 91, 0.1);
  color: var(--gold);
  border-color: var(--border-gold);
}

.tag-gold:hover {
  background: rgba(198, 161, 91, 0.2);
  border-color: var(--gold);
}

.sidebar-note {
  background: rgba(198, 161, 91, 0.06);
  border: 1px dashed rgba(198, 161, 91, 0.3);
  border-radius: 10px;
  padding: 16px 18px;
}

.sidebar-note p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.sidebar-note strong {
  color: var(--gold);
  font-weight: 600;
}

/* ========== 使用场景 ========== */
.scene-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 80px;
}

.scene-block:last-child {
  margin-bottom: 0;
}

.scene-block.reverse .scene-image {
  order: 2;
}

.scene-block.reverse .scene-text {
  order: 1;
}

.scene-image {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-card);
}

.scene-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.scene-image:hover img {
  transform: scale(1.03);
}

.scene-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 14, 20, 0.5), transparent 60%);
}

.scene-text {
  padding: 32px;
}

.scene-text h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 16px;
  line-height: 1.4;
}

.scene-text h3::before {
  content: "◆";
  font-size: 12px;
  color: var(--gold);
  margin-right: 10px;
  vertical-align: 2px;
}

.scene-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 52ch;
}

.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.scene-tags .tag {
  background: transparent;
  border-color: var(--border-gold);
  color: var(--gold);
}

.scene-tags .tag:hover {
  background: rgba(198, 161, 91, 0.1);
}

/* ========== 口碑案例 ========== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  position: relative;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  border-top: 3px solid var(--gold);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  background: var(--bg-hover);
}

.testimonial-card .quote {
  font-size: 56px;
  line-height: 1;
  color: var(--gold);
  font-family: Georgia, serif;
  margin-bottom: 12px;
  position: absolute;
  top: 26px;
  right: 28px;
  opacity: 0.6;
}

.testimonial-card p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 20px;
  padding-right: 20px;
}

.testimonial-card .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(198, 161, 91, 0.15);
  padding-top: 16px;
}

.testimonial-card .author {
  font-size: 14px;
  color: var(--text-main);
  font-weight: 600;
}

.testimonial-card .author span {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 400;
  margin-top: 2px;
}

.testimonial-card .stars {
  color: var(--gold);
  font-size: 14px;
  letter-spacing: 2px;
}

.testimonial-card .scene-label {
  display: inline-block;
  background: rgba(198, 161, 91, 0.12);
  border: 1px solid var(--border-gold);
  color: var(--gold);
  font-size: 12px;
  border-radius: var(--radius-badge);
  padding: 3px 12px;
  margin-top: 12px;
}

/* ========== 价格方案 ========== */
.pricing-grid {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 24px;
  flex-wrap: wrap;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-card);
  padding: 36px 32px;
  width: 320px;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.pricing-card:hover {
  border-color: var(--border-gold-light);
  box-shadow: var(--shadow-hover);
}

.pricing-card.featured {
  transform: scale(1.03);
  border-color: var(--border-gold-light);
  background: linear-gradient(180deg, rgba(198, 161, 91, 0.06), rgba(21, 26, 36, 0.3)), var(--bg-card);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5), 0 0 30px rgba(198, 161, 91, 0.08);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.badge-recommend {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--red);
  color: var(--gold-light);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-badge);
  padding: 4px 16px;
  box-shadow: 0 4px 12px rgba(142, 59, 70, 0.4);
  letter-spacing: 0.05em;
}

.pricing-card .plan-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 8px;
}

.pricing-card .plan-sub {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.pricing-card .price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(198, 161, 91, 0.15);
}

.pricing-card .price .currency {
  font-size: 18px;
  color: var(--gold);
}

.pricing-card .price .amount {
  font-size: 48px;
  font-weight: 700;
  color: var(--text-title);
  line-height: 1;
}

.pricing-card .price .per {
  font-size: 14px;
  color: var(--text-secondary);
}

.pricing-card .features {
  list-style: none;
  flex: 1;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-card .features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--text-main);
  line-height: 1.6;
}

.pricing-card .features li::before {
  content: "◆";
  font-size: 8px;
  color: var(--gold);
  margin-top: 4px;
  flex-shrink: 0;
}

.pricing-card .btn {
  margin-top: auto;
}

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid rgba(198, 161, 91, 0.2);
  border-radius: var(--radius-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item.active {
  border-color: var(--border-gold-light);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-title2);
  text-align: left;
  transition: color 0.3s ease;
}

.faq-question .icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-gold);
  color: var(--gold);
  font-size: 16px;
  transition: transform 0.4s ease, background 0.3s ease, color 0.3s ease;
}

.faq-item.active .faq-question {
  color: var(--gold-light);
}

.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
  background: rgba(198, 161, 91, 0.15);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

.faq-answer .inner {
  border-left: 2px solid var(--gold);
  padding-left: 16px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ========== CTA ========== */
.cta-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  padding: 96px 0;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(11, 14, 20, 0.88), rgba(11, 14, 20, 0.9));
}

.cta-section .container {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 12px;
}

.cta-section .cta-desc {
  font-size: 15px;
  color: #a9a294;
  margin-bottom: 36px;
}

.cta-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 700px;
  margin: 0 auto 12px;
}

.cta-form input {
  width: 180px;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid rgba(198, 161, 91, 0.3);
  border-radius: var(--radius-input);
  color: var(--text-main);
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.cta-form input:focus {
  border-color: var(--gold-light);
  box-shadow: 0 0 0 3px rgba(212, 175, 106, 0.12);
}

.cta-form input::placeholder {
  color: var(--text-secondary);
}

.cta-form .error-msg {
  font-size: 13px;
  color: var(--red-light);
  margin-top: 8px;
  display: none;
}

.cta-form .success-msg {
  font-size: 13px;
  color: var(--gold);
  margin-top: 8px;
  display: none;
}

.cta-hint {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 16px;
}

/* ========== 页脚 ========== */
.footer {
  background-color: var(--bg-deeper);
  border-top: 1px solid rgba(198, 161, 91, 0.1);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  font-size: 22px;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 36ch;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-title2);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 1px;
  background: var(--gold);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.3s ease, transform 0.3s ease;
}

.footer-col ul a::before {
  content: "◆";
  font-size: 6px;
  color: var(--gold);
}

.footer-col ul a:hover {
  color: var(--gold-light);
  transform: translateX(4px);
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-contact-list li i {
  color: var(--gold);
  font-size: 14px;
  margin-top: 4px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(198, 161, 91, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ========== 响应式 ========== */
@media (max-width: 992px) {
  .nav-links {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonial-card:last-child {
    grid-column: span 2;
    max-width: 500px;
    margin: 0 auto;
  }
  .articles-wrap {
    grid-template-columns: 1fr;
  }
  .articles-sidebar {
    position: static;
  }
  .pricing-card {
    width: 300px;
  }
  .scene-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .scene-block.reverse .scene-image {
    order: 1;
  }
  .scene-block.reverse .scene-text {
    order: 2;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  :root {
    --section-gap: 56px;
  }
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .hero h1 {
    font-size: 28px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-buttons .btn {
    width: 100%;
    max-width: 260px;
  }
  .hero-badge {
    width: 100%;
    max-width: 340px;
    justify-content: flex-start;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .testimonial-card:last-child {
    grid-column: span 1;
    max-width: none;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .scene-text {
    padding: 16px 0;
  }
  .scene-text h3 {
    font-size: 20px;
  }
  .faq-question {
    font-size: 16px;
    padding: 16px;
  }
  .faq-answer {
    padding: 0 16px;
  }
  .faq-item.active .faq-answer {
    padding: 0 16px 16px;
  }
  .pricing-grid {
    gap: 20px;
  }
  .pricing-card {
    width: 100%;
    max-width: 360px;
  }
  .pricing-card.featured {
    transform: none;
    order: -1;
  }
  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }
  .cta-form input {
    width: 100%;
    max-width: 320px;
  }
  .cta-form .btn {
    width: 100%;
    max-width: 320px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: span 1;
  }
  .nav-search.active input {
    width: 140px;
  }
}

@media (max-width: 575px) {
  .nav-search input {
    display: none;
  }
  .nav-search.active input {
    display: block;
    position: absolute;
    right: 44px;
    top: 50%;
    transform: translateY(-50%);
  }
  .article-item {
    flex-direction: column;
    gap: 12px;
  }
  .article-date {
    min-width: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
  }
  .article-date .day {
    font-size: 16px;
  }
  .cta-section h2 {
    font-size: 24px;
  }
  .hero-kicker {
    font-size: 12px;
  }
}