@import url('https://fonts.googleapis.com/css2?family=Calistoga:ital@0;1&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================================
   CSS 自定义属性
   ============================================================ */
:root {
  --c-primary: #eb879c;
  --c-secondary: #ffb6c1;
  --c-dark: #26171a;
  --c-dark-80: rgba(38,23,26,0.8);
  --c-dark-60: rgba(38,23,26,0.6);
  --c-dark-40: rgba(38,23,26,0.4);
  --c-dark-10: rgba(38,23,26,0.08);
  --c-primary-light: #f9dde3;
  --c-primary-deep: #d4607a;
  --c-secondary-light: #fff0f3;
  --c-white: #fff;
  --c-bg: #fdf5f7;
  --c-surface: #ffffff;
  --c-surface-2: #fef0f2;
  --c-border: rgba(235,135,156,0.25);
  --c-text: #26171a;
  --c-text-muted: #7a4d57;

  --font-heading: 'Calistoga', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 3px rgba(38,23,26,0.06), 0 1px 2px rgba(235,135,156,0.08);
  --shadow-sm: 0 2px 6px rgba(38,23,26,0.08), 0 2px 4px rgba(235,135,156,0.12);
  --shadow-md: 0 4px 16px rgba(38,23,26,0.10), 0 2px 6px rgba(235,135,156,0.15);
  --shadow-lg: 0 8px 32px rgba(38,23,26,0.12), 0 4px 12px rgba(235,135,156,0.18);
  --shadow-xl: 0 16px 48px rgba(38,23,26,0.15), 0 8px 24px rgba(235,135,156,0.20);

  --header-h: 64px;
  --announce-h: 36px;
  --transition: 220ms cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 320ms cubic-bezier(0.4,0,0.2,1);
}

/* ============================================================
   重置与基础
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--announce-h) + var(--header-h) + 16px);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  overflow-x: hidden;
  min-height: 100vh;
}

body.menu-open {
  overflow: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { border: none; background: none; cursor: pointer; font: inherit; }
ul, ol { list-style: none; }

/* ============================================================
   公告栏
   ============================================================ */
.announce-bar {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--announce-h);
  background: linear-gradient(90deg, var(--c-dark) 0%, #3d1e25 50%, var(--c-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.announce-text {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-secondary);
  letter-spacing: 0.08em;
  white-space: nowrap;
  animation: marquee 28s linear infinite;
}

@keyframes marquee {
  0%   { transform: translateX(8vw); }
  100% { transform: translateX(-100%); }
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: var(--announce-h);
  z-index: 190;
  height: var(--header-h);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 16px;
}

/* 汉堡按钮 */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.hamburger:hover, .hamburger:focus-visible {
  background: var(--c-primary-light);
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.ham-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition), width var(--transition);
}

.hamburger[aria-expanded="true"] .ham-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] .ham-line:nth-child(2) {
  opacity: 0; width: 0;
}
.hamburger[aria-expanded="true"] .ham-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 品牌居中 */
.header-brand {
  display: flex;
  justify-content: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  transition: opacity var(--transition);
}
.brand-logo:hover { opacity: 0.82; }

.brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--c-dark);
  letter-spacing: 0.02em;
}

.logo-img { height: 36px; width: auto; }

/* 导航行 */
.header-nav {
  display: flex;
  justify-content: center;
}

.nav-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--c-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.nav-link:hover, .nav-link:focus-visible {
  color: var(--c-primary);
  background: var(--c-primary-light);
  outline: 2px solid var(--c-primary);
  outline-offset: -2px;
}

.header-actions {
  display: flex;
  align-items: center;
}

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition), color var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 3px solid var(--c-primary);
  outline-offset: 3px;
}

.btn--primary {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-deep) 100%);
  color: #fff;
  box-shadow: var(--shadow-sm), 0 0 0 0 rgba(235,135,156,0);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--c-primary-deep) 0%, #c04d67 100%);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--c-primary-deep);
  border: 2px solid var(--c-primary);
}

.btn--ghost:hover {
  background: var(--c-primary-light);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn--sm { font-size: 0.8125rem; padding: 0 16px; height: 36px; }
.btn--lg { font-size: 1rem; padding: 0 28px; height: 48px; border-radius: var(--radius-md); }

/* ============================================================
   全屏遮罩菜单
   ============================================================ */
.fullscreen-menu {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: linear-gradient(160deg, var(--c-dark) 0%, #3d1e25 60%, #1a0d10 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.fullscreen-menu[aria-hidden="false"] {
  opacity: 1;
  pointer-events: all;
}

.menu-close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(235,135,156,0.15);
  color: var(--c-secondary);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
}

.menu-close:hover, .menu-close:focus-visible {
  background: rgba(235,135,156,0.3);
  transform: rotate(90deg);
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.menu-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--c-secondary);
  letter-spacing: 0.04em;
}

.logo-mark { height: 40px; width: auto; }

.menu-nav { width: 100%; max-width: 480px; }

.menu-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.menu-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 56px;
  font-size: 1.25rem;
  font-weight: 500;
  color: rgba(255,182,193,0.7);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
  opacity: 0;
  transform: translateY(12px);
}

.fullscreen-menu[aria-hidden="false"] .menu-link {
  opacity: 1;
  transform: translateY(0);
  transition: color var(--transition), background var(--transition), border-color var(--transition),
    opacity 280ms calc(60ms * var(--stagger, 0)) ease,
    transform 280ms calc(60ms * var(--stagger, 0)) ease;
}

.menu-link:hover, .menu-link:focus-visible {
  color: var(--c-white);
  background: rgba(235,135,156,0.12);
  border-color: rgba(235,135,156,0.3);
  transform: translateX(6px);
  outline: none;
}

.menu-footer-text {
  font-size: 0.8125rem;
  color: rgba(255,182,193,0.4);
  text-align: center;
  max-width: 360px;
  letter-spacing: 0.04em;
}

.menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 299;
  display: none;
}

/* ============================================================
   Hero
   ============================================================ */
.hero-section {
  position: relative;
  min-height: 45vh;
  display: grid;
  grid-template-columns: 180px 1fr 420px;
  align-items: center;
  gap: 0;
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-secondary-light) 0%, var(--c-bg) 60%, var(--c-primary-light) 100%);
  padding: 48px 0;
}

/* hero aside */
.hero-aside {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0 24px 0 32px;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--c-primary-deep);
  text-transform: uppercase;
  background: var(--c-primary-light);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--c-primary);
  margin-bottom: 12px;
}

.hero-bg-text {
  font-family: var(--font-heading);
  font-size: clamp(5rem, 14vw, 11rem);
  font-weight: 400;
  color: rgba(235,135,156,0.08);
  line-height: 1;
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  z-index: 0;
}

/* hero content */
.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 32px;
  max-width: 560px;
}

.hero-h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.2;
  color: var(--c-dark);
  margin-bottom: 16px;
}

.hero-desc {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text-muted);
  margin-bottom: 28px;
  max-width: 440px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* hero figure */
.hero-figure {
  position: relative;
  z-index: 2;
  height: 100%;
  min-height: 320px;
}

.hero-collage {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 320px;
}

.hero-img, .hero-img-placeholder {
  position: absolute;
  border-radius: var(--radius-lg);
  object-fit: cover;
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-slow);
}

.hero-img--a {
  width: 68%;
  height: 72%;
  top: 0;
  right: 40px;
  z-index: 2;
}

.hero-img--b {
  width: 58%;
  height: 62%;
  bottom: 0;
  right: 0;
  z-index: 1;
  border: 4px solid var(--c-white);
  filter: brightness(0.95);
}

.hero-img-placeholder {
  background: linear-gradient(135deg, var(--c-primary-light) 0%, var(--c-secondary-light) 100%);
}

.hero-deco-circle {
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(235,135,156,0.3) 0%, transparent 70%);
  bottom: 10%;
  left: 5%;
  z-index: 0;
  pointer-events: none;
}

.hero-deco-ring {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid rgba(235,135,156,0.25);
  top: 10%;
  left: 20%;
  z-index: 0;
  pointer-events: none;
}

.hero-collage:hover .hero-img--a {
  transform: translate(-4px, -4px) rotate(-1deg);
}
.hero-collage:hover .hero-img--b {
  transform: translate(4px, 4px) rotate(1deg);
}

/* ============================================================
   正文区：content-section
   ============================================================ */
.content-section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 24px 80px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  align-items: start;
}

/* ============================================================
   Aside（内容左侧）
   ============================================================ */
.content-aside {
  position: relative;
}

.aside-sticky {
  position: sticky;
  top: calc(var(--announce-h) + var(--header-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.aside-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--c-primary-deep);
  text-transform: uppercase;
  margin-bottom: 4px;
  padding: 0 4px;
}

.aside-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--c-surface);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
}

.aside-link {
  display: flex;
  align-items: center;
  height: 40px;
  padding: 0 12px;
  font-size: 0.875rem;
  color: var(--c-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.aside-link:hover, .aside-link:focus-visible {
  color: var(--c-primary-deep);
  background: var(--c-primary-light);
  outline: 2px solid var(--c-primary);
  outline-offset: -2px;
}

.aside-card {
  margin-top: 16px;
  background: linear-gradient(135deg, var(--c-primary-light) 0%, var(--c-secondary-light) 100%);
  border-radius: var(--radius-md);
  padding: 16px;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-xs);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.aside-card-eyebrow {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-primary-deep);
  text-transform: uppercase;
}

.aside-card-text {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  font-weight: 500;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #48bb78;
  box-shadow: 0 0 0 3px rgba(72,187,120,0.25);
  align-self: flex-start;
}

/* ============================================================
   正文内容区
   ============================================================ */
.content-main {
  min-width: 0;
}

/* page.content 注入区的通用样式 */
.content-main h1,
.content-main h2,
.content-main h3,
.content-main h4 {
  font-family: var(--font-heading);
  color: var(--c-dark);
  line-height: 1.25;
  margin-top: 2em;
  margin-bottom: 0.6em;
}

.content-main h1 { font-size: 2rem; }
.content-main h2 { font-size: 1.5rem; margin-top: 2.5em; }
.content-main h3 { font-size: 1.2rem; }

.content-main p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
  margin-bottom: 1em;
}

.content-main a {
  color: var(--c-primary-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}
.content-main a:hover { color: var(--c-primary); }

.content-main ul, .content-main ol {
  padding-left: 1.5em;
  margin-bottom: 1em;
}
.content-main ul { list-style: disc; }
.content-main ol { list-style: decimal; }

.content-main li {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-text);
  margin-bottom: 0.35em;
}

.content-main strong { font-weight: 700; color: var(--c-dark); }
.content-main em { font-style: italic; color: var(--c-primary-deep); }

.content-main blockquote {
  border-left: 4px solid var(--c-primary);
  padding: 12px 20px;
  margin: 1.5em 0;
  background: var(--c-primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--c-text-muted);
}

.content-main code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--c-surface-2);
  color: var(--c-primary-deep);
  padding: 2px 6px;
  border-radius: 3px;
}

.content-main pre {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--c-dark);
  color: var(--c-secondary);
  padding: 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: 1.5em;
}

.content-main table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5em;
  font-size: 0.9rem;
}

.content-main th {
  background: var(--c-primary-light);
  color: var(--c-dark);
  font-weight: 600;
  padding: 10px 14px;
  text-align: left;
  border-bottom: 2px solid var(--c-primary);
}

.content-main td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text);
}

.content-main tr:hover td {
  background: var(--c-secondary-light);
}

/* section 内的 figure / aside（结构契约要求） */
.content-main section {
  position: relative;
  padding-top: 16px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--c-border);
}

.content-main section:last-child {
  border-bottom: none;
}

.content-main section figure {
  margin: 24px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.content-main section figure img {
  width: 100%;
  object-fit: cover;
}

.content-main section figcaption {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  padding: 8px 12px;
  background: var(--c-surface-2);
  text-align: center;
}

.content-main section aside {
  float: right;
  width: 240px;
  margin: 0 0 20px 24px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-bottom: 3px solid var(--c-primary);
  border-radius: var(--radius-sm);
  padding: 16px;
  box-shadow: var(--shadow-xs);
  font-size: 0.875rem;
  color: var(--c-text-muted);
}

.content-main section aside::after {
  content: '';
  display: table;
  clear: both;
}

/* 小标题眉题 (small + h2) */
.content-main small {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--c-primary-deep);
  text-transform: uppercase;
  margin-bottom: 4px;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  background: var(--c-dark);
  color: rgba(255,182,193,0.8);
}

.footer-top {
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 24px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
}

.footer-eyebrow {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--c-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.footer-contact-title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  color: var(--c-white);
  margin-bottom: 10px;
  line-height: 1.3;
}

.footer-contact-desc {
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(255,182,193,0.65);
  margin-bottom: 16px;
}

.footer-email,
.footer-tg {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 16px;
  background: rgba(235,135,156,0.12);
  border: 1px solid rgba(235,135,156,0.25);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--c-secondary);
  margin-right: 8px;
  margin-bottom: 8px;
  transition: background var(--transition), border-color var(--transition);
}

.footer-email:hover, .footer-tg:hover,
.footer-email:focus-visible, .footer-tg:focus-visible {
  background: rgba(235,135,156,0.22);
  border-color: var(--c-primary);
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.footer-links-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-link {
  display: flex;
  align-items: center;
  height: 40px;
  font-size: 0.9rem;
  color: rgba(255,182,193,0.7);
  border-radius: var(--radius-sm);
  padding: 0 8px;
  transition: color var(--transition), background var(--transition);
}

.footer-link:hover, .footer-link:focus-visible {
  color: var(--c-white);
  background: rgba(235,135,156,0.10);
  outline: 2px solid var(--c-primary);
  outline-offset: -2px;
}

.footer-brand-logo {
  margin-bottom: 12px;
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--c-secondary);
}

.footer-brand-desc {
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(255,182,193,0.55);
  margin-bottom: 16px;
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 10px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--c-primary);
  border: 1px solid rgba(235,135,156,0.3);
  border-radius: var(--radius-sm);
  background: rgba(235,135,156,0.08);
}

/* footer bottom */
.footer-bottom {
  border-top: 1px solid rgba(235,135,156,0.15);
}

.footer-bottom-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-bottom-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  flex: 1;
}

.footer-bottom-link {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 10px;
  font-size: 0.8125rem;
  color: rgba(255,182,193,0.55);
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.footer-bottom-link:hover, .footer-bottom-link:focus-visible {
  color: var(--c-secondary);
  outline: 2px solid var(--c-primary);
}

.footer-copyright {
  font-size: 0.75rem;
  color: rgba(255,182,193,0.35);
  text-align: right;
  flex-shrink: 0;
}

/* ============================================================
   Scroll margin for anchored sections
   ============================================================ */
section[id] {
  scroll-margin-top: calc(var(--announce-h) + var(--header-h) + 20px);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1100px) {
  .hero-section {
    grid-template-columns: 140px 1fr 360px;
  }
}

@media (max-width: 900px) {
  .hero-section {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    min-height: auto;
    padding: 40px 24px;
    gap: 24px;
  }

  .hero-aside {
    padding: 0;
    flex-direction: row;
    align-items: center;
  }

  .hero-bg-text {
    position: static;
    transform: none;
    font-size: 4rem;
    opacity: 0.12;
    margin-left: 12px;
  }

  .hero-content {
    padding: 0;
    max-width: 100%;
  }

  .hero-figure {
    min-height: 260px;
  }

  .hero-img--a { width: 62%; height: 78%; }
  .hero-img--b { width: 54%; height: 64%; }

  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .header-nav { display: none; }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 40px 24px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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

  .content-section {
    grid-template-columns: 1fr;
  }

  .content-aside {
    display: none;
  }
}

@media (max-width: 600px) {
  .hero-section { padding: 32px 16px; }

  .hero-h1 { font-size: 1.625rem; }

  .hero-figure { min-height: 220px; }

  .header-inner { padding: 0 16px; }

  .content-section { padding: 40px 16px 60px; }

  .hero-cta { flex-direction: column; align-items: flex-start; }

  .btn--lg { width: 100%; justify-content: center; }

  .footer-top { padding: 32px 16px; }

  .footer-bottom-inner { padding: 16px; }

  .content-main section aside {
    float: none;
    width: 100%;
    margin: 0 0 20px 0;
  }
}

/* ============================================================
   prefers-reduced-motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html { scroll-behavior: auto; }

  .fullscreen-menu[aria-hidden="false"] .menu-link {
    transition: none;
    opacity: 1;
    transform: none;
  }
}