/* Andrea Liang - Lawyer in Beijing */
/* Design system: Editorial Minimal + Deep Navy / Warm Gold */

:root {
  --color-navy: #0F2540;
  --color-navy-light: #1A3A5C;
  --color-gold: #B8956A;
  --color-gold-light: #C9A86C;
  --color-parchment: #F7F4EF;
  --color-cream: #FDFCFA;
  --color-charcoal: #6B6B6B;
  --color-text: #1A1A1A;
  --color-border: #E8E4DC;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
  --max-width: 1160px;
  --radius: 4px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.25;
  color: var(--color-navy);
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin-bottom: 0.5rem;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 0.875rem;
  font-family: var(--font-sans);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  color: var(--color-gold);
}

p {
  margin-bottom: 1rem;
}

.section-pretitle {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.section-title {
  margin-bottom: 2.5rem;
  max-width: 700px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-gold);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-gold-light);
  color: #fff;
}

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

.btn-outline:hover {
  background-color: var(--color-navy);
  color: #fff;
}

.btn-small {
  padding: 10px 18px;
  font-size: 0.875rem;
}

.btn-full {
  width: 100%;
}

/* Header */
.site-header {
  background-color: var(--color-navy);
  padding: 16px 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: box-shadow 0.2s ease;
}

.site-header.is-sticky {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

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

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: #fff;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-sub {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-gold);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  transition: color 0.2s ease;
}

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

.main-nav .btn-small {
  margin-left: 8px;
  background-color: var(--color-gold);
  color: #fff;
  border: 1px solid var(--color-gold);
}

.main-nav .btn-small:hover {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold-light);
  color: #fff;
}

/* 顶部「Insights」下拉 ────────────────────────────────────────────────
   桌面端：hover 或键盘聚焦时展开，**纯 CSS，不用 JS**。
   为什么不做成点击展开：这一项本身要能点击（点 Insight 进全部文章列表），
   若再接管点击去开合面板，就等于把一个链接变成按钮，导航反而多一次点击。
   hover 展开 + :focus-within 兼顾鼠标与键盘（Tab 到链接时面板即出现，
   再按 Tab 就能走进分类链接）。 */
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

/* 悬停桥：菜单文字与下拉面板之间有一段空白，鼠标横穿时会短暂离开两者，
   :hover 中断、面板闪一下就收起（"dropdown flicker"）。用一个透明的
   伪元素把这段路铺满，指针始终在 .nav-item 的作用域内。 */
.nav-item::after {
  content: "";
  position: absolute;
  top: 100%;
  left: -12px;
  right: -12px;
  height: 16px;
}

.nav-dropdown {
  list-style: none;
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  z-index: 120;
  min-width: 248px;
  margin: 0;
  padding: 10px 0;
  background-color: var(--color-navy);
  border: 1px solid rgba(184, 149, 106, 0.35);
  border-radius: var(--radius);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

/* 面板内是 10 项分类，逐行列出。这里要显式覆盖 .main-nav a 的字号与内边距，
   否则 10 项会挤成一行高、彼此贴住，没有可点区域的样子。 */
.nav-dropdown a {
  display: block;
  padding: 7px 20px;
  font-size: 0.875rem;
  white-space: nowrap;
}

.nav-dropdown a:hover {
  color: var(--color-gold);
  background-color: rgba(255, 255, 255, 0.05);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: #fff;
  transition: all 0.2s ease;
}

/* Hero */
.hero {
  background-color: var(--color-navy);
  background-image:
    linear-gradient(180deg, rgba(15, 37, 64, 0.75) 0%, rgba(15, 37, 64, 0.60) 50%, rgba(15, 37, 64, 0.50) 100%),
    url("../images/beijing-great-wall.webp");
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: cover;
  color: #fff;
  padding: 160px 0 80px;
  margin-top: 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, rgba(15, 37, 64, 0.30) 0%, rgba(15, 37, 64, 0.10) 50%, rgba(15, 37, 64, 0.30) 100%);
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 64px;
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero-pretitle {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-gold);
  margin-bottom: 1.5rem;
}

.hero h1 {
  color: #fff;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.5rem;
}

.hero-lead {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 2rem;
}

.hero-meta span {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  padding-right: 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-meta span:last-child {
  border-right: none;
}

.hero-form {
  background-color: var(--color-navy-light);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.form-header h2 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.form-header p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.85);
}

.hero-form label,
.site-footer label,
.site-footer legend {
  color: rgba(255, 255, 255, 0.85);
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: #fff;
  color: var(--color-text);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-gold);
}

textarea {
  resize: vertical;
}

.form-privacy {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 12px;
  margin-bottom: 0;
  text-align: center;
}

/* 提交失败提示（由 assets/js/form-handler.js 动态插入）
   表单均位于深色背景（navy / navy-light）之上，故使用浅色文字 + 暖金点缀 */
.form-error {
  display: none;
  flex-basis: 100%;
  margin: 16px 0 0;
  padding: 10px 14px;
  border-left: 3px solid var(--color-gold, #B8956A);
  background: rgba(184, 149, 106, 0.15);
  color: #F1E4CE;
  font-size: 0.875rem;
  line-height: 1.5;
  text-align: left;
}

.contact-method {
  border: none;
  padding: 0;
  margin-bottom: 16px;
}

.contact-method legend {
  font-size: 0.875rem;
  margin-bottom: 10px;
}

.contact-method label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-right: 16px;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.85);
  cursor: pointer;
}

.contact-method input[type="radio"] {
  width: auto;
  margin: 0;
}

/* Trust Bar */
.trust-bar {
  background-color: var(--color-parchment);
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.trust-inner {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--color-charcoal);
  text-align: center;
}

.trust-separator {
  color: var(--color-gold);
}

/* Sections */
section {
  padding: 80px 0;
}

.practice-areas {
  background-color: #fff;
}

.practice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.practice-card {
  background-color: var(--color-parchment);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.practice-card:hover {
  transform: translateY(-4px);
}

.practice-card h3 {
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.practice-tagline {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  color: var(--color-charcoal);
  margin-bottom: 1.5rem;
}

.practice-services ul {
  list-style: none;
  margin-bottom: 1.5rem;
}

.practice-services li {
  font-size: 0.9375rem;
  color: var(--color-text);
  padding: 6px 0;
  padding-left: 18px;
  position: relative;
}

.practice-services li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-gold);
}

.practice-clients {
  margin-bottom: 1.5rem;
  margin-top: auto;
}

.practice-clients p {
  font-size: 0.875rem;
  color: var(--color-charcoal);
  margin-bottom: 0;
}

/* Why Andrea */
.why-andrea {
  background-color: var(--color-parchment);
}

.why-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.why-content p {
  color: var(--color-charcoal);
  margin-bottom: 1.25rem;
}

.why-image img {
  width: 100%;
  height: auto;
  max-height: 580px;
  object-fit: contain;
  object-position: center;
  border-radius: var(--radius);
}

/* Credentials */
.credentials {
  background-color: #fff;
}

.credentials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.credential-card {
  text-align: center;
  padding: 28px;
  background-color: var(--color-parchment);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.credential-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 500;
  color: var(--color-navy);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.credential-card p {
  font-size: 0.9375rem;
  color: var(--color-charcoal);
  margin-bottom: 0;
}

.credentials-list {
  max-width: 800px;
  margin: 0 auto 48px;
  text-align: center;
}

.credentials-list p {
  font-size: 1.125rem;
  color: var(--color-charcoal);
}

.credentials-images {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.credentials-images img {
  width: 280px;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

@media (max-width: 992px) {
  .credentials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .credentials-images img {
    width: 240px;
  }
}

@media (max-width: 768px) {
  .credentials-grid {
    grid-template-columns: 1fr;
  }
}

/* Results */
.results {
  background-color: #fff;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.result-card {
  background-color: var(--color-parchment);
  padding: 28px;
  border-radius: var(--radius);
  border-left: 3px solid var(--color-gold);
}

.result-number {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.result-desc {
  font-size: 0.9375rem;
  color: var(--color-charcoal);
  margin-bottom: 0;
}

/* Testimonials */
.testimonials {
  background-color: var(--color-parchment);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background-color: #fff;
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  text-align: left;
}

.testimonial-card blockquote {
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.testimonial-card blockquote p {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-navy);
  line-height: 1.5;
}

.testimonial-card cite {
  font-style: normal;
  font-size: 0.875rem;
  color: var(--color-charcoal);
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

@media (max-width: 992px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

/* FAQ */
.faq {
  background-color: #fff;
}

.faq-list {
  max-width: 800px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 24px 0;
}

.faq-item h3 {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
}

.faq-item p {
  color: var(--color-charcoal);
  margin-bottom: 0;
}

/* Insights */
.insights {
  background-color: var(--color-parchment);
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 2rem;
}

.insight-card {
  background-color: #fff;
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.insight-card time {
  font-size: 0.8125rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.insight-card h3 {
  font-size: 1.25rem;
  margin: 0.75rem 0;
}

.insight-card h3 a:hover {
  color: var(--color-gold);
}

.insight-card p {
  font-size: 0.9375rem;
  color: var(--color-charcoal);
  margin-bottom: 0;
}

.insights-cta {
  text-align: center;
}

/* Footer */
.site-footer {
  background-color: var(--color-navy);
  color: #fff;
  padding: 80px 0 32px;
}

.footer-cta {
  text-align: center;
  margin-bottom: 48px;
}

.footer-cta h2 {
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-cta p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
}

.contact-form {
  max-width: 720px;
  margin: 0 auto 48px;
  background-color: var(--color-navy-light);
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-contact {
  text-align: center;
  margin-bottom: 32px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: 0;
}

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

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 0;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
}

.contact-highlight {
  color: var(--color-gold);
}

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

/* Page Hero */
.page-hero {
  background-color: var(--color-navy);
  background-image:
    linear-gradient(180deg, rgba(15, 37, 64, 0.80) 0%, rgba(15, 37, 64, 0.70) 100%),
    url("../images/beijing-great-wall.webp");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  color: #fff;
  padding: 180px 0 100px;
  text-align: center;
}

.page-hero h1 {
  color: #fff;
  margin-bottom: 1rem;
}

.page-pretitle {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.page-lead {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  margin: 0 auto;
}

/* About Page */
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-image img {
  width: 100%;
  height: auto;
  max-height: 620px;
  object-fit: contain;
  object-position: center;
  border-radius: var(--radius);
}

.about-content p {
  color: var(--color-charcoal);
  margin-bottom: 1.25rem;
}

.about-timeline {
  background-color: var(--color-parchment);
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 32px;
}

.timeline-item {
  border-left: 2px solid var(--color-gold);
  padding-left: 24px;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 6px;
  left: -7px;
  width: 12px;
  height: 12px;
  background-color: var(--color-gold);
  border-radius: 50%;
}

.timeline-date {
  font-size: 0.8125rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.5rem;
}

.timeline-item h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.timeline-item p {
  color: var(--color-charcoal);
  margin-bottom: 0;
}

.about-education {
  background-color: #fff;
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 600px;
}

.education-card {
  background-color: var(--color-parchment);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.education-card h3 {
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.education-card p {
  color: var(--color-charcoal);
  margin-bottom: 0;
}

/* Practice Areas Detail */
.practice-detail {
  background-color: #fff;
}

.practice-detail-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--color-border);
}

.practice-detail-section:first-child {
  padding-top: 0;
}

.practice-detail-section:last-child {
  border-bottom: none;
}

.practice-detail-header {
  max-width: 800px;
  margin-bottom: 40px;
}

.practice-detail-header .section-pretitle {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
}

.practice-detail-lead {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-charcoal);
  margin-bottom: 0;
}

.practice-detail-body {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  align-items: start;
}

.practice-detail-content h3 {
  font-size: 1.125rem;
  font-family: var(--font-sans);
  font-weight: 500;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.practice-detail-content ul {
  margin-bottom: 1.5rem;
  padding-left: 20px;
}

.practice-detail-content li {
  color: var(--color-charcoal);
  margin-bottom: 0.5rem;
}

.practice-detail-sidebar {
  display: grid;
  gap: 24px;
  position: sticky;
  top: 100px;
}

.sidebar-card {
  background-color: var(--color-parchment);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.sidebar-card h4 {
  margin-bottom: 0.5rem;
}

.sidebar-card p {
  color: var(--color-charcoal);
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* CTA Section */
.cta-section {
  background-color: var(--color-navy);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}

.cta-inner {
  max-width: 640px;
  margin: 0 auto;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: 0.75rem;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 1.5rem;
}

/* Publications */
.insights-filter {
  background-color: var(--color-parchment);
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.filter-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.filter-link {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid var(--color-navy);
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--color-navy);
  transition: all 0.2s ease;
}

.filter-link:hover,
.filter-link.is-active {
  background-color: var(--color-navy);
  color: #fff;
}

/* 二级（主题）导航：挂在领域页 / 主题页的一级筛选栏下方。
   刻意做得比一级轻 —— 无边框、小一号、金色，靠下划线表示当前项，
   视觉上读作「同一张筛选器的第二层」，而不是两个并列的导航条。 */
.insights-topics {
  background-color: var(--color-parchment);
  padding: 0 0 20px;
  border-bottom: 1px solid var(--color-border);
}

.topic-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
}

.topic-link {
  display: inline-block;
  padding: 2px 0;
  font-size: 0.8125rem;
  color: var(--color-gold);
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.topic-link:hover,
.topic-link.is-active {
  color: var(--color-navy);
  border-bottom-color: var(--color-navy);
}

.topic-link .filter-count {
  margin-left: 5px;
  font-size: 0.6875rem;
  color: var(--color-charcoal);
  opacity: 0.75;
}

/* 文章页题头的分类行改成了「领域 · 主题」两级链接，链接须沿用 pretitle 的金色小字，
   不能落回浏览器默认的蓝色下划线。 */
.page-pretitle a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.page-pretitle a:hover {
  border-bottom-color: currentColor;
}

.insight-card .insight-category {
  display: block;
  font-size: 0.75rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.5rem;
}

.pagination {
  text-align: center;
  margin-top: 2rem;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 520px;
  margin: 0 auto;
}

.newsletter-form input[type="email"] {
  flex: 1;
  min-width: 240px;
}

/* Contact Page */
.contact-layout {
  background-color: #fff;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 2rem;
}

.contact-detail {
  margin-bottom: 1.5rem;
}

.contact-detail h4 {
  margin-bottom: 0.25rem;
}

.contact-detail p {
  color: var(--color-charcoal);
  margin-bottom: 0;
}

.contact-detail a {
  color: var(--color-navy);
}

.contact-detail a:hover {
  color: var(--color-gold);
}

.contact-map {
  margin-top: 2rem;
  padding: 24px;
  background-color: var(--color-parchment);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.contact-map p {
  margin-bottom: 0;
  color: var(--color-charcoal);
  font-size: 0.9375rem;
}

.contact-form.standalone {
  max-width: none;
  margin: 0;
}

/* Legal Content */
.legal-content {
  background-color: #fff;
}

.legal-inner {
  max-width: 760px;
  margin: 0 auto;
}

.legal-inner h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.legal-inner p,
.legal-inner li {
  color: var(--color-charcoal);
}

.legal-inner ul {
  margin-bottom: 1rem;
  padding-left: 20px;
}

.legal-inner li {
  margin-bottom: 0.5rem;
}

/* Landing Pages */
.landing-hero {
  background-color: var(--color-navy);
  background-image:
    linear-gradient(180deg, rgba(15, 37, 64, 0.80) 0%, rgba(15, 37, 64, 0.70) 100%),
    url("../images/beijing-great-wall.webp");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  color: #fff;
  padding: 170px 0 90px;
}

.landing-hero-inner {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 64px;
  align-items: start;
}

.landing-hero-content {
  max-width: 560px;
}

.landing-hero .hero-pretitle {
  color: var(--color-gold);
  margin-bottom: 1rem;
}

.landing-hero h1 {
  color: #fff;
  margin-bottom: 1.25rem;
}

.landing-hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
}

.landing-hero-lead {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 2rem;
}

.landing-hero-bullets {
  list-style: none;
  margin-bottom: 2rem;
}

.landing-hero-bullets li {
  padding: 6px 0 6px 28px;
  position: relative;
  color: rgba(255, 255, 255, 0.8);
}

.landing-hero-bullets li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-weight: 600;
}

.landing-hero-form {
  background-color: var(--color-navy-light);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.landing-hero-form h2 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.landing-hero-form > p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
}

/* Pain Points */
.pain-points {
  background-color: #fff;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pain-card {
  background-color: var(--color-parchment);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.pain-card h3 {
  color: var(--color-navy);
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.pain-card p {
  color: var(--color-charcoal);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* Process */
.process {
  background-color: var(--color-parchment);
}

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

.process-step {
  background-color: #fff;
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  text-align: center;
}

.process-number {
  width: 48px;
  height: 48px;
  background-color: var(--color-gold);
  color: #fff;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 48px;
  border-radius: 50%;
  margin: 0 auto 1rem;
}

.process-step h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.process-step p {
  color: var(--color-charcoal);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* Trust Bar variant */
.landing-trust {
  background-color: var(--color-navy);
  color: #fff;
  padding: 48px 0;
}

.landing-trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.landing-trust-item .trust-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.landing-trust-item p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* Results highlight */
.results-highlight {
  background-color: #fff;
}

.results-highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.result-highlight-card {
  background-color: var(--color-parchment);
  padding: 32px;
  border-radius: var(--radius);
  border-top: 3px solid var(--color-gold);
}

.result-highlight-card .result-number {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
}

.result-highlight-card p {
  color: var(--color-charcoal);
  margin-bottom: 0;
}

/* Sticky CTA Bar */
.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #fff;
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
  padding: 16px 0;
  z-index: 99;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.sticky-cta.is-visible {
  transform: translateY(0);
}

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

.sticky-cta-text h3 {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.sticky-cta-text p {
  font-size: 0.875rem;
  color: var(--color-charcoal);
  margin-bottom: 0;
}

/* Responsive additions */
@media (max-width: 992px) {
  .about-inner,
  .practice-detail-body,
  .contact-inner,
  .landing-hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .landing-hero-form {
    max-width: 480px;
  }

  .pain-grid,
  .process-grid,
  .landing-trust-grid,
  .results-highlight-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .practice-detail-sidebar {
    position: static;
  }

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

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input[type="email"] {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .page-hero,
  .landing-hero {
    padding: 140px 0 80px;
  }

  .page-hero h1,
  .landing-hero h1 {
    font-size: 2rem;
  }

  .practice-detail-section {
    padding: 60px 0;
  }

  .pain-grid,
  .process-grid,
  .landing-trust-grid,
  .results-highlight-grid {
    grid-template-columns: 1fr;
  }

  .sticky-cta-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .sticky-cta-text {
    display: none;
  }
}

/* Responsive */
@media (max-width: 992px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-form {
    max-width: 480px;
  }

  .practice-grid,
  .results-grid,
  .insights-grid {
    grid-template-columns: 1fr;
  }

  .why-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .why-image img {
    height: 300px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background-color: var(--color-navy);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    /* 抽屉现在多了「Insights」下的 10 个分类链接，小屏手机上会超出视口高度。
       不给滚动的话，末尾几项（Trademark / Uncategorized）就永久点不到了。 */
    max-height: calc(100vh - 68px);
    overflow-y: auto;
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  /* 抽屉里的 Insights 分类：不做悬浮面板 —— 触摸屏没有 hover，
     藏起来等于这 10 个分类在手机上彻底不可达。改为静态展开的缩进列表，
     随抽屉一起出现。 */
  .nav-item {
    display: block;
    width: 100%;
  }

  .nav-item::after {
    display: none;
  }

  .nav-dropdown {
    position: static;
    top: auto;
    left: auto;
    transform: none;
    min-width: 0;
    margin-top: 12px;
    padding: 0 0 0 16px;
    background: transparent;
    border: 0;
    border-left: 1px solid rgba(184, 149, 106, 0.4);
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
  }

  .nav-item:hover .nav-dropdown,
  .nav-item:focus-within .nav-dropdown {
    transform: none;
  }

  .nav-dropdown a {
    padding: 6px 0;
    font-size: 0.875rem;
    white-space: normal;
  }

  .main-nav .btn-small {
    margin-left: 0;
    width: 100%;
    text-align: center;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero-form {
    padding: 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .trust-inner {
    font-size: 0.875rem;
  }

  section {
    padding: 60px 0;
  }

  .testimonial-card blockquote p {
    font-size: 1.25rem;
  }

  .contact-form {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }

  .hero-pretitle {
    font-size: 1rem;
  }

  .hero-meta span {
    border-right: none;
    padding-right: 0;
  }
}