@import url('https://fonts.googleapis.com/css2?family=Amatic+SC:wght@400;700&family=Cabin:wght@400;500;600;700&display=swap');

/* ============================================================
   CSS 变量与基础重置
   ============================================================ */
:root {
  --c-bg: #000000;
  --c-fg: #ffffff;
  --c-ink: #000000;
  --c-accent: #ffffff;
  --c-dim: #888888;
  --c-border: #333333;
  --c-highlight: #e8e8e8;
  --font-display: 'Amatic SC', cursive;
  --font-body: 'Cabin', system-ui, sans-serif;
  --header-h: 60px;
  --topbar-h: 36px;
  --max-w: 1200px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background: var(--c-bg);
  color: var(--c-fg);
}

body {
  font-family: var(--font-body);
  line-height: 1.7;
  background: var(--c-bg);
  color: var(--c-fg);
  overflow-x: hidden;
}

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

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

ul, ol {
  list-style: none;
}

/* ============================================================
   顶部公告条
   ============================================================ */
.topbar {
  background: var(--c-fg);
  color: var(--c-bg);
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: sticky;
  top: 0;
  z-index: 200;
}

.topbar-text {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 var(--gutter);
}

/* ============================================================
   站点头部
   ============================================================ */
.site-header {
  position: sticky;
  top: var(--topbar-h);
  z-index: 190;
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
}

.brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--c-fg);
  white-space: nowrap;
  line-height: 1;
}

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  min-width: 44px;
  min-height: 44px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-fg);
  transition: transform var(--transition), opacity var(--transition);
}

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

/* ============================================================
   全屏遮罩导航 (aside > nav > ul > li > a)
   ============================================================ */
.nav-aside {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: var(--c-bg);
  display: flex;
  align-items: stretch;
  transform: translateX(-100%);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
  will-change: transform;
}

.nav-aside.is-open {
  transform: translateX(0);
}

.nav-overlay-inner {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 2rem var(--gutter);
  overflow-y: auto;
}

.nav-close {
  align-self: flex-end;
  background: none;
  border: 1px solid var(--c-border);
  color: var(--c-fg);
  font-size: 1.4rem;
  width: 44px;
  height: 44px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 3rem;
}

.nav-main {
  flex: 1;
}

.nav-main ul {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.nav-main ul li {
  border-top: 1px solid var(--c-border);
}

.nav-main ul li:last-child {
  border-bottom: 1px solid var(--c-border);
}

.nav-main ul li a {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 1rem 0;
  color: var(--c-fg);
  transition: letter-spacing var(--transition), color var(--transition);
}

.nav-main ul li a:hover {
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--c-dim);
}

/* ============================================================
   Hero 首页
   ============================================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #111;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img,
.hero-media .hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-placeholder {
  background: linear-gradient(135deg, #111 0%, #222 50%, #111 100%);
}

.hero-mask {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(0, 0, 0, 0.65);
}

.hero-slant {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  z-index: 2;
  height: 80px;
  background: var(--c-bg);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 var(--gutter);
  max-width: 860px;
}

.hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 7rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.03em;
  margin-bottom: 1.2rem;
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  line-height: 1.6;
  color: var(--c-highlight);
  margin-bottom: 2.5rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: inline-block;
  border: 2px solid var(--c-fg);
  color: var(--c-fg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.85rem 2.5rem;
  transition: background var(--transition), color var(--transition);
  min-height: 44px;
}

.hero-cta:hover {
  background: var(--c-fg);
  color: var(--c-bg);
  text-decoration: none;
}

/* ============================================================
   页面次级 Hero
   ============================================================ */
.page-hero {
  position: relative;
  background: var(--c-bg);
  border-bottom: 3px solid var(--c-fg);
  padding: clamp(3rem, 8vw, 6rem) var(--gutter) clamp(2rem, 5vw, 4rem);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 260px;
}

.page-hero .hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.25;
}

.page-hero .hero-mask {
  z-index: 1;
  background: rgba(0,0,0,0.55);
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.page-hero-content--left {
  text-align: left;
}

.page-hero--cases {
  background: #0a0a0a;
}

.page-hero--faq {
  background: #050505;
}

.page-hero--about {
  background: #080808;
}

.page-hero--contact {
  background: #060606;
}

.page-hero--privacy {
  background: #040404;
}

.hero-editorial-stripe {
  position: absolute;
  top: 0;
  right: 0;
  width: 6px;
  height: 100%;
  background: var(--c-fg);
  z-index: 3;
}

.eyebrow-label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-dim);
  margin-bottom: 0.75rem;
}

.page-h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin-bottom: 0.5rem;
}

.page-date,
.page-date-mod {
  display: block;
  font-size: 0.8rem;
  color: var(--c-dim);
  margin-top: 0.5rem;
  font-family: var(--font-body);
}

/* ============================================================
   主内容区
   ============================================================ */
.site-main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.content-section {
  padding: clamp(2.5rem, 6vw, 5rem) 0;
  border-bottom: 1px solid var(--c-border);
}

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

/* ============================================================
   引言 / Pull Quote
   ============================================================ */
.pull-quote-figure {
  margin-bottom: 2rem;
}

.pull-quote {
  border-left: 4px solid var(--c-fg);
  padding: 1.2rem 1.5rem;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-fg);
  letter-spacing: 0.02em;
}

.pull-quote span {
  display: block;
}

/* ============================================================
   正文内容
   ============================================================ */
.content-body {
  max-width: 780px;
  font-size: 1rem;
  line-height: 1.8;
}

.content-body p {
  margin-bottom: 1.2em;
}

.content-body h2,
.content-body h3,
.content-body h4 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 2rem 0 0.75rem;
  letter-spacing: 0.03em;
}

.content-body h2 { font-size: 1.8rem; }
.content-body h3 { font-size: 1.4rem; }

.content-body ul,
.content-body ol {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1.2em;
}

.content-body ol {
  list-style: decimal;
}

.content-body li {
  margin-bottom: 0.4em;
}

.content-body a {
  border-bottom: 1px solid var(--c-border);
  transition: border-color var(--transition);
}

.content-body a:hover {
  border-color: var(--c-fg);
}

/* Drop cap */
.drop-cap .content-body > p:first-of-type::first-letter,
.drop-cap > p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-size: 4.5em;
  font-weight: 700;
  float: left;
  line-height: 0.75;
  margin: 0.05em 0.08em 0 0;
  color: var(--c-fg);
}

/* ============================================================
   区块标题
   ============================================================ */
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.section-heading span:first-child {
  display: inline-block;
}

.heading-line {
  flex: 1;
  height: 2px;
  background: var(--c-fg);
  display: inline-block;
}

/* ============================================================
   卡片（零圆角 + 底部强调线）
   ============================================================ */
.card {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--c-border);
  border-bottom: 3px solid var(--c-fg);
  margin-bottom: 2rem;
  overflow: hidden;
  transition: transform var(--transition);
  border-radius: 0;
}

.card:hover {
  transform: translateY(-3px);
}

.card-figure {
  overflow: hidden;
  max-height: 240px;
}

.card-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-figure img {
  transform: scale(1.04);
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  letter-spacing: 0.03em;
}

.card-title span {
  display: inline-block;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--c-dim);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.card-link {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--c-fg);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
  min-height: 44px;
  line-height: 44px;
}

.card-link:hover {
  color: var(--c-dim);
  border-color: var(--c-dim);
  text-decoration: none;
}

/* ============================================================
   首页布局：服务卡片 grid
   ============================================================ */
.cards-section {
  display: block;
}

.cards-section > .card {
  display: grid;
}

@media (min-width: 720px) {
  .cards-section {
    display: block;
  }
  .cards-section > div.card {
    display: grid;
    grid-template-columns: 280px 1fr;
  }
  .cards-section > div.card:nth-child(even) {
    grid-template-columns: 1fr 280px;
  }
  .cards-section > div.card:nth-child(even) .card-figure {
    order: 2;
  }
  .cards-section > div.card:nth-child(even) .card-body {
    order: 1;
  }
}

/* ============================================================
   首页 promo 区
   ============================================================ */
.promo-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .promo-section {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.promo-aside {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.promo-block {
  border-top: 2px solid var(--c-fg);
  padding-top: 1.2rem;
}

.promo-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.promo-title span {
  display: inline-block;
}

.promo-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--c-fg);
  padding-bottom: 2px;
  min-height: 44px;
  line-height: 44px;
}

.promo-link:hover {
  text-decoration: none;
  opacity: 0.7;
}

.promo-editorial {
  border-left: 4px solid var(--c-fg);
  padding-left: 1.5rem;
}

.editorial-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-dim);
  margin-bottom: 0.75rem;
}

.editorial-text {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

/* ============================================================
   侧边栏 / Related Aside
   ============================================================ */
.related-aside,
.faq-nav-aside,
.contact-info-aside {
  border-top: 2px solid var(--c-fg);
  padding-top: 1.5rem;
}

.aside-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.aside-title span {
  display: inline-block;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.aside-links li {
  border-bottom: 1px solid var(--c-border);
}

.aside-links li a {
  display: block;
  padding: 0.65rem 0;
  font-size: 0.9rem;
  color: var(--c-fg);
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: padding-left var(--transition);
}

.aside-links li a:hover {
  padding-left: 0.5rem;
  text-decoration: none;
}

/* ============================================================
   布局：service
   ============================================================ */
@media (min-width: 1024px) {
  .layout-service .service-content {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 4rem;
    align-items: start;
  }

  .layout-service .service-content .pull-quote-figure {
    grid-column: 1 / -1;
  }

  .layout-service .content-section:has(.related-aside) {
    padding-top: 0;
    border-bottom: none;
  }
}

/* ============================================================
   Cases 页
   ============================================================ */
.case-card {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem;
  border-top: 1px solid var(--c-border);
  border-bottom: 3px solid var(--c-fg);
  padding: 1.5rem 0;
  margin-bottom: 1rem;
  align-items: start;
  transition: background var(--transition);
}

.case-card:hover {
  background: rgba(255,255,255,0.03);
}

.case-index {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--c-dim);
  line-height: 1;
  padding-top: 0.2rem;
}

.case-figure {
  grid-column: 1 / -1;
  margin-bottom: 0.5rem;
}

.case-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.case-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}

.case-title span {
  display: inline-block;
}

.case-date {
  font-size: 0.78rem;
  color: var(--c-dim);
}

.case-desc {
  font-size: 0.9rem;
  color: var(--c-dim);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .case-card {
    grid-template-columns: 60px 200px 1fr;
  }
  .case-figure {
    grid-column: auto;
    margin: 0;
  }
}

/* ============================================================
   FAQ 页
   ============================================================ */
.faq-body {
  max-width: 780px;
}

.faq-body h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  border-top: 2px solid var(--c-fg);
  padding-top: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.faq-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

/* ============================================================
   联系表单
   ============================================================ */
.layout-contact .contact-form-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 768px) {
  .layout-contact .contact-form-section {
    grid-template-columns: 1fr 280px;
  }
}

.contact-form-figure {
  margin: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-dim);
}

.form-group input,
.form-group textarea {
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--c-border);
  color: var(--c-fg);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 0;
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
  border-radius: 0;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--c-fg);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--c-dim);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-submit {
  align-self: flex-start;
  background: var(--c-fg);
  color: var(--c-bg);
  border: none;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.9rem 2.5rem;
  cursor: pointer;
  min-height: 44px;
  border-radius: 0;
  transition: opacity var(--transition);
}

.form-submit:hover {
  opacity: 0.8;
}

/* ============================================================
   About 侧边图
   ============================================================ */
.about-lead {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 768px) {
  .about-lead {
    grid-template-columns: 1fr 340px;
  }
}

.about-img-aside img,
.about-img {
  width: 100%;
  object-fit: cover;
  border-bottom: 3px solid var(--c-fg);
}

.about-img-placeholder {
  height: 260px;
  background: #111;
  border-bottom: 3px solid var(--c-fg);
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  background: var(--c-bg);
  border-top: 3px solid var(--c-fg);
  padding: 0 var(--gutter);
  margin-top: 4rem;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "brand"
    "links"
    "contact"
    "bottom";
  gap: 0;
}

.site-footer > article {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--c-border);
}

.site-footer > article:last-child {
  border-bottom: none;
}

@media (min-width: 768px) {
  .site-footer {
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-areas:
      "brand links contact"
      "bottom bottom bottom";
  }

  .footer-brand { grid-area: brand; padding-right: 3rem; }
  .footer-links { grid-area: links; }
  .footer-contact { grid-area: contact; }
  .footer-bottom { grid-area: bottom; }

  .site-footer > article {
    border-bottom: none;
    border-right: 1px solid var(--c-border);
    padding-right: 2rem;
  }
  .site-footer > .footer-contact {
    border-right: none;
    padding-right: 0;
  }
  .site-footer > .footer-bottom {
    border-top: 1px solid var(--c-border);
  }
}

.footer-logo-text {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: 0.04em;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--c-dim);
  line-height: 1.7;
  max-width: 320px;
}

.footer-nav-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.footer-nav-title span {
  display: inline-block;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.footer-nav-list li a {
  display: block;
  font-size: 0.85rem;
  color: var(--c-dim);
  padding: 0.4rem 0;
  min-height: 40px;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

.footer-nav-list li a:hover {
  color: var(--c-fg);
  text-decoration: none;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-copy,
.footer-policy {
  font-size: 0.78rem;
  color: var(--c-dim);
}

.footer-policy a {
  color: var(--c-dim);
  border-bottom: 1px solid var(--c-border);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.footer-policy a:hover {
  color: var(--c-fg);
  text-decoration: none;
}

/* ============================================================
   隐私页
   ============================================================ */
.privacy-body {
  max-width: 780px;
}

.privacy-body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  border-top: 1px solid var(--c-border);
  padding-top: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

/* ============================================================
   Reveal on scroll 动画
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.card:nth-child(1) { transition-delay: 0s; }
.card:nth-child(2) { transition-delay: 0.08s; }
.card:nth-child(3) { transition-delay: 0.16s; }
.card:nth-child(4) { transition-delay: 0.24s; }

.case-card:nth-child(1) { transition-delay: 0s; }
.case-card:nth-child(2) { transition-delay: 0.07s; }
.case-card:nth-child(3) { transition-delay: 0.14s; }
.case-card:nth-child(4) { transition-delay: 0.21s; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-slant,
  .hero-cta,
  .card,
  .card-figure img,
  .card-link,
  .nav-main ul li a,
  .aside-links li a,
  .form-group input,
  .form-group textarea,
  .form-submit,
  .hamburger span,
  .nav-aside {
    transition: none !important;
  }
}

/* ============================================================
   响应式补充
   ============================================================ */
@media (max-width: 767px) {
  .hero-h1 {
    font-size: clamp(2.2rem, 10vw, 3.5rem);
  }

  .pull-quote {
    font-size: 1.2rem;
  }

  .section-heading {
    font-size: 1.6rem;
  }

  .case-card {
    grid-template-columns: 50px 1fr;
  }

  .case-figure {
    display: none;
  }
}

@media (min-width: 1024px) {
  .layout-about .about-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 4rem;
    align-items: start;
  }
}

/* ============================================================
   Misc utilities
   ============================================================ */
.site-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1;
}

/* Parallax hint for hero image */
@media (min-width: 768px) {
  .hero-media img {
    will-change: transform;
  }
}