/* ============================================
   启鸿建筑设计 — 宣传网站样式  v5
   日式极简杂志风 · Architectural Editorial
   全出血图片 / 文字叠加 / 留白美学 / 温润调性
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --color-bg: #f7f4f0;
  --color-white: #fdfbf8;
  --color-black: #22201e;
  --color-gray-900: #2e2b28;
  --color-gray-700: #5a5550;
  --color-gray-500: #9e968f;
  --color-gray-300: #d0cac4;
  --color-gray-100: #eae5df;
  --color-accent: #22201e;
  --color-accent-warm: #50483f;

  --font-serif: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'STSong', serif;
  --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;

  --nav-h: 64px;
  --max-w: 1480px;
  --max-w-sm: 800px;
  --gap: 20px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-slow: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-black);
  line-height: 1.75;
  font-size: 15px;
  overflow-x: hidden;
  font-weight: 350;
}
img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; transition: opacity .35s var(--ease); }
a:hover { opacity: .6; }
ul { list-style: none; }
button { font-family: inherit; }
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 72px);
}
.container-sm { max-width: var(--max-w-sm); }

/* ---------- Section Base ---------- */
.section { padding: clamp(70px, 10vh, 140px) 0; }
.section-header { text-align: center; margin-bottom: clamp(48px, 6vh, 80px); position: relative; }
@media (max-width: 600px) {
  .section { padding: clamp(48px, 8vh, 80px) 0; }
  .section-header { margin-bottom: clamp(32px, 5vh, 56px); }
}
.section-title-en {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--color-gray-500);
  margin-bottom: 12px;
}
.section-title-cn {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4vw, 48px);
  font-weight: 300;
  letter-spacing: 8px;
  margin-bottom: 14px;
  color: var(--color-black);
}
.section-desc {
  font-size: 13px;
  color: var(--color-gray-500);
  max-width: 440px;
  margin: 0 auto;
  line-height: 1.9;
  letter-spacing: 1px;
}

/* 搜索栏 */
.search-bar {
  position: relative;
  max-width: 320px;
}
.search-wrap {
  margin: 24px auto 0;
  max-width: 320px;
}
.search-input {
  width: 100%;
  padding: 11px 40px 11px 16px;
  border: 1px solid var(--color-gray-300);
  background: var(--color-white);
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-black);
  letter-spacing: 1px;
  outline: none;
  transition: border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.search-input::placeholder {
  color: var(--color-gray-500);
  letter-spacing: 3px;
  font-size: 12px;
}
.search-input:focus {
  border-color: var(--color-gray-700);
  box-shadow: 0 0 0 3px rgba(0,0,0,.03);
}
.search-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: var(--color-gray-500);
  pointer-events: none;
  opacity: .5;
}


/* ============================================
   NAVIGATION — 极简半透明
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  /* 默认淡显暖白色背景（通透感） */
  background: rgba(247,244,240,.65);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(0,0,0,.04);
  transition: all .5s var(--ease);
}
/* 首页Hero区域：暗色透明（仅首页使用） */
.nav.hero-mode {
  background: rgba(0,0,0,.25);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav.hero-mode .nav-logo { color: rgba(255,255,255,.85); }
.nav.hero-mode .nav-logo-img { filter: invert(1); }
.nav.hero-mode .nav-links a { color: rgba(255,255,255,.55); }
.nav.hero-mode .nav-links a:hover { color: rgba(255,255,255,.95); opacity: 1; }
.nav.hero-mode .nav-links a::after { background: rgba(255,255,255,.5); }
.nav.hero-mode .nav-toggle span { background: rgba(255,255,255,.6); }
/* 滚动后切淡显暖白色（首页用） */
.nav.scrolled {
  background: rgba(247,244,240,.85);
  border-bottom: 1px solid rgba(0,0,0,.05);
  box-shadow: 0 1px 24px rgba(0,0,0,.03);
}

/* ===== 首页：Hero 区导航半透明黑底，滚动后暖白（仅 .home 首页生效） ===== */
.home .nav:not(.scrolled) {
  background: rgba(0,0,0,.25);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.home .nav:not(.scrolled) .nav-logo { color: rgba(255,255,255,.85); }
.home .nav:not(.scrolled) .nav-logo-img { filter: invert(1); }
.home .nav:not(.scrolled) .nav-links a { color: rgba(255,255,255,.55); }
.home .nav:not(.scrolled) .nav-links a:hover { color: rgba(255,255,255,.95); opacity: 1; }
.home .nav:not(.scrolled) .nav-links a::after { background: rgba(255,255,255,.5); }
.home .nav:not(.scrolled) .nav-toggle span { background: rgba(255,255,255,.6); }
.home .nav.scrolled .nav-logo { color: rgba(0,0,0,.75); }
.home .nav.scrolled .nav-links a { color: rgba(0,0,0,.55); }
.home .nav.scrolled .nav-links a:hover { color: rgba(0,0,0,.95); }
.home .nav.scrolled .nav-links a::after { background: rgba(0,0,0,.5); }
.home .nav.scrolled .nav-toggle span { background: var(--color-black); }

.nav-inner {
  max-width: var(--max-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 3px;
  font-weight: 400;
  color: rgba(0,0,0,.75);
  transition: color .35s;
  display: flex;
  align-items: center;
  white-space: nowrap;
}
.nav-logo-img {
  height: 26px;
  width: auto;
  margin-right: 10px;
  transition: filter .35s;
}
.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-size: 15px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(0,0,0,.55);
  position: relative;
  padding-bottom: 4px;
  transition: color .35s;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: rgba(0,0,0,.5);
  transition: width .4s var(--ease), background .35s;
}
.nav-links a:hover { opacity: 1; color: rgba(0,0,0,.95); }
.nav-links a:hover::after { width: 100%; background: rgba(0,0,0,.8); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--color-black); transition: all .35s var(--ease); }

.mobile-menu {
  display: none;
  position: fixed; inset: 0; z-index: 999;
  background: rgba(247,244,240,.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0; pointer-events: none;
  transition: opacity .4s var(--ease);
}
.mobile-menu.open { opacity: 1; pointer-events: all; display: flex; }
.mobile-menu a { font-family: var(--font-serif); font-size: 26px; letter-spacing: 6px; color: var(--color-black); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
}


/* ============================================
   HERO — 全屏封面
   图片满铺 · 文字居中 · 暗色遮罩
   ============================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: #0d0b09;
}
/* 底部渐变过渡到暖白内容区 */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: clamp(60px, 12vh, 160px);
  background: linear-gradient(transparent, var(--color-bg));
  pointer-events: none;
  z-index: 2;
}

/* —— 轮播层 —— */
.hero-slider {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.8s var(--ease-slow);
}
.hero-slide.active { opacity: 1; }
.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* —— 暗色遮罩 —— */
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0,0,0,.45) 0%, rgba(0,0,0,.15) 40%, rgba(0,0,0,.5) 100%);
}

/* —— 居中文字 —— */
.hero-content {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 2vh, 20px);
  color: #fff;
  text-align: center;
  padding: var(--nav-h) 24px 80px;
  animation: heroIn .9s var(--ease-slow) both;
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-subtitle {
  font-family: var(--font-sans);
  font-size: clamp(10px, 0.95vw, 12px);
  letter-spacing: clamp(5px, 1vw, 9px);
  text-transform: uppercase;
  opacity: .5;
  font-weight: 400;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 7vw, 88px);
  font-weight: 250;
  letter-spacing: clamp(10px, 2vw, 20px);
  line-height: 1.12;
}
.hero-rule {
  width: clamp(40px, 5vw, 60px);
  height: 1px;
  background: rgba(255,255,255,.22);
}
.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(14px, 1.5vw, 19px);
  opacity: .55;
  letter-spacing: clamp(5px, 1vw, 10px);
  font-weight: 300;
}

/* CTA */
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: clamp(12px, 2vh, 24px);
  padding: 13px 30px;
  border: 1px solid rgba(255,255,255,.22);
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: rgba(255,255,255,.6);
  transition: all .4s var(--ease);
  font-weight: 400;
}
.hero-cta:hover {
  background: #fff;
  color: #1a1815;
  border-color: #fff;
  opacity: 1;
}
.hero-cta-arrow {
  display: inline-block;
  font-size: 14px;
  transition: transform .4s var(--ease);
}
.hero-cta:hover .hero-cta-arrow { transform: translateY(3px); }

/* 向下滚动提示 */
.hero-scroll-hint {
  position: absolute;
  bottom: clamp(20px, 3vh, 36px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: scrollPulse 2.5s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: .25; transform: translateX(-50%) translateY(0); }
  50% { opacity: .55; transform: translateX(-50%) translateY(6px); }
}
.hero-scroll-hint span {
  font-size: 9px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: rgba(255,255,255,.3);
}
.hero-scroll-hint::after {
  content: '';
  display: block;
  width: 1px;
  height: 24px;
  background: linear-gradient(transparent, rgba(255,255,255,.2));
}

/* ======== 移动端 ======== */
@media (max-width: 768px) {
  .hero-content {
    padding: var(--nav-h) 20px 80px;
    gap: clamp(8px, 1.5vh, 14px);
  }
  .hero-title {
    font-size: clamp(28px, 9vw, 48px);
    letter-spacing: 8px;
  }
  .hero-subtitle { font-size: 9px; letter-spacing: 5px; }
  .hero-tagline { font-size: 12px; }
  .hero-cta { padding: 11px 24px; font-size: 10px; }
  .hero-scroll-hint { bottom: 16px; }
}


/* ============================================
   HERO — 静态背景图 + 4s 自动浏览
   ============================================ */
/* 静态背景图 */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
}

/* 自动浏览提示条 */
.hero-auto-tip {
  position: absolute;
  bottom: clamp(20px, 3vh, 40px);
  right: clamp(16px, 3vw, 40px);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 3px;
  color: rgba(255,255,255,.45);
  transition: color .3s;
}
.hero-auto-tip:hover {
  color: rgba(255,255,255,.85);
}

/* 进度条 */
.hero-auto-bar {
  width: 64px;
  height: 1px;
  background: rgba(255,255,255,.12);
  border-radius: 1px;
  overflow: hidden;
}
.hero-auto-bar-inner {
  height: 100%;
  width: 0%;
  background: rgba(255,255,255,.55);
  transition: width .1s linear;
}

/* 移动端微调 */
@media (max-width: 768px) {
  .hero-auto-tip {
    right: 50%;
    transform: translateX(50%);
    bottom: 20px;
    gap: 8px;
    font-size: 10px;
  }
  .hero-auto-bar { width: 48px; }
}


/* ============================================
   CATEGORY TABS — 极简下划线风格
   ============================================ */
.category-tabs {
  display: flex;
  justify-content: center;
  gap: clamp(20px, 4vw, 48px);
  margin-bottom: clamp(48px, 6vh, 72px);
  flex-wrap: wrap;
  row-gap: 16px;
}

.cat-tab {
  background: none;
  border: none;
  padding: 12px 2px 14px;
  cursor: pointer;
  text-align: center;
  position: relative;
  transition: opacity .35s;
  opacity: .35;
}
.cat-tab:hover { opacity: .6; }
.cat-tab.active { opacity: 1; }

.cat-tab::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 1.5px;
  background: var(--color-black);
  transition: width .45s var(--ease);
  border-radius: 1px;
}
.cat-tab.active::after { width: 100%; }

.cat-tab-cn {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.6vw, 18px);
  letter-spacing: 3px;
  margin-bottom: 3px;
  color: var(--color-black);
  font-weight: 400;
}
.cat-tab-en {
  display: block;
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-gray-500);
}

@media (max-width: 600px) {
  .category-tabs {
    gap: 0;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 0 8px;
    margin-left: -8px;
    margin-right: -8px;
    /* 两端渐变遮罩 */
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 3%, #000 97%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0%, #000 3%, #000 97%, transparent 100%);
  }
  .category-tabs::-webkit-scrollbar { display: none; }
  .cat-tab {
    flex-shrink: 0;
    padding: 10px 14px;
    white-space: nowrap;
  }
  .cat-tab-cn { font-size: 14px; letter-spacing: 2px; }
  .cat-tab-en { font-size: 9px; }
}


/* ============================================
   HORIZONTAL SWIPER — 作品横向滑动
   ============================================ */
.swiper-wrap {
  position: relative;
  padding: 0;
}

.swiper-track {
  display: flex;
  gap: clamp(14px, 2vw, 24px);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 8px clamp(24px, 5vw, 72px);
  margin: 0 calc(clamp(24px, 5vw, 72px) * -1);
  /* 两端渐变遮罩暗示可滑动 */
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 2%, #000 98%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 2%, #000 98%, transparent 100%);
}
.swiper-track::-webkit-scrollbar { display: none; }

/* Swiper Card — 统一尺寸全出血 */
.swiper-card {
  flex: 0 0 clamp(220px, 28vw, 360px);
  scroll-snap-align: start;
  position: relative;
  cursor: pointer;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: var(--color-gray-900);
  -webkit-tap-highlight-color: transparent;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
@media (hover: hover) {
  .swiper-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(0,0,0,.15);
  }
}

.swiper-card-img {
  position: absolute;
  inset: 0;
}
.swiper-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s var(--ease), filter .7s var(--ease);
}
.swiper-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.22);
  transition: opacity .7s var(--ease);
}
@media (hover: hover) {
  .swiper-card:hover .swiper-card-img img {
    transform: scale(1.07);
    filter: brightness(.94) saturate(1);
  }
  .swiper-card:hover .swiper-card-img::after {
    opacity: 0;
  }
}

/* 底部文字叠加 */
.swiper-card-body {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 2;
  padding: clamp(20px, 3vw, 40px) clamp(16px, 2vw, 24px) clamp(16px, 2vw, 24px);
  background: linear-gradient(transparent 0%, rgba(0,0,0,.7) 100%);
}
.swiper-card-label {
  display: block;
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  margin-bottom: 5px;
  font-weight: 400;
}
.swiper-card-title {
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.8vw, 20px);
  font-weight: 300;
  letter-spacing: 4px;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 3px;
}
.swiper-card-sub {
  font-size: 11px;
  color: rgba(255,255,255,.45);
  letter-spacing: 1px;
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.swiper-empty {
  display: none;
  text-align: center;
  padding: 80px 0;
  color: var(--color-gray-500);
  font-size: 13px;
  letter-spacing: 3px;
  font-family: var(--font-serif);
}

/* 导航箭头 */
.swiper-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(245,242,237,.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0,0,0,.06);
  color: var(--color-black);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity .35s var(--ease), transform .35s var(--ease), background .35s;
  pointer-events: none;
}
.swiper-wrap:hover .swiper-arrow,
.swiper-arrow.visible { opacity: 1; pointer-events: auto; }
.swiper-arrow--prev { left: -10px; }
.swiper-arrow--next { right: -10px; }
@media (hover: hover) {
  .swiper-arrow:hover { background: #fff; transform: translateY(-50%) scale(1.06); }
}

/* 底部圆点指示器 */
.swiper-dots {
  display: none;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}
.swiper-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gray-300);
  transition: all .35s var(--ease);
}
.swiper-dot.active {
  background: var(--color-black);
  width: 20px;
  border-radius: 3px;
}

@media (max-width: 768px) {
  .swiper-card { flex: 0 0 clamp(220px, 58vw, 300px); }
  .swiper-arrow { display: none; }
  .swiper-dots { display: flex; }
  .swiper-track {
    padding: 8px 24px;
    margin: 0 -24px;
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 1%, #000 99%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0%, #000 1%, #000 99%, transparent 100%);
  }
}


/* ============================================
   PROJECT CARDS — 杂志全出血布局 (保留用于详情页等)
   ============================================ */
.project-list-legacy {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 2.5vw, 28px);
  min-height: 200px;
}
.empty-hint {
  display: none;
  text-align: center;
  padding: 80px 0;
  color: var(--color-gray-500);
  font-size: 13px;
  letter-spacing: 3px;
  font-family: var(--font-serif);
}

/* ============================================
   ABOUT — 杂志对页排版
   ============================================ */
.about-section { background: var(--color-white); padding: clamp(50px, 7vh, 80px) 0; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 4vw, 60px);
  align-items: center;
}
.about-text-col .section-title-en { text-align: left; }
.about-text-col .section-title-cn { text-align: left; margin-bottom: 28px; }
.about-text-col p {
  margin-bottom: 20px;
  color: var(--color-gray-700);
  font-size: 15px;
  line-height: 2;
  letter-spacing: .5px;
}
.about-lead {
  font-family: var(--font-serif);
  font-size: 18px !important;
  color: var(--color-black) !important;
  line-height: 2.1 !important;
  margin-bottom: 32px !important;
  font-weight: 300 !important;
  letter-spacing: 2px !important;
}

.about-stats {
  display: flex;
  gap: 40px;
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px solid var(--color-gray-100);
}
.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--color-black);
  margin-bottom: 6px;
  font-weight: 300;
  letter-spacing: 2px;
}
.stat-label {
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--color-gray-500);
  text-transform: uppercase;
}

.about-img-frame {
  position: relative;
  overflow: hidden;
  border-radius: 1px;
}
.about-img-frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform .7s var(--ease), filter .7s var(--ease);
  filter: brightness(.95);
}
@media (hover: hover) {
  .about-img-frame:hover img { transform: scale(1.03); filter: brightness(1); }
}

/* 团队照说明文字 */
.about-img-caption {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.about-img-caption-en {
  font-size: 10px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--color-gray-500);
  font-weight: 400;
}
.about-img-caption-cn {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 4px;
  color: var(--color-gray-700);
  font-weight: 400;
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-text-col .section-title-en,
  .about-text-col .section-title-cn { text-align: center; }
  .about-stats { justify-content: center; gap: 32px; }
}


/* ============================================
   关于启鸿 — 愿景文字
   ============================================ */
.about-vision {
  font-size: 14px;
  color: var(--color-gray-600);
  line-height: 2;
  letter-spacing: .5px;
  margin-bottom: 20px;
  padding-left: 16px;
  border-left: 2px solid var(--color-gray-300);
}

/* ============================================
   TEAM — 核心团队
   ============================================ */
.team-section {
  margin-top: clamp(40px, 6vh, 60px);
  padding-top: clamp(32px, 4vh, 48px);
  border-top: 1px solid var(--color-gray-100);
}

.team-header {
  text-align: center;
  margin-bottom: clamp(20px, 3vh, 32px);
}

/* 团队合影 — 居中限制宽度完整显示不裁切 */
.team-photo-banner {
  width: 100%;
  max-width: 720px;
  margin: 0 auto clamp(16px, 2vh, 24px);
  overflow: hidden;
  border-radius: 1px;
  box-shadow: 0 8px 32px rgba(0,0,0,.08);
}
.team-photo-banner img {
  width: 100%;
  height: auto;
  display: block;
}
.team-header .section-title-en {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--color-gray-500);
  margin-bottom: 8px;
}
.team-header .section-title-cn {
  font-family: var(--font-serif);
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 300;
  letter-spacing: 8px;
  color: var(--color-black);
  margin-bottom: 12px;
}
.team-desc {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.8;
  letter-spacing: 1px;
  max-width: 520px;
  margin: 0 auto;
}
.team-desc-br {
  display: none;
}
@media (min-width: 600px) {
  .team-desc-br { display: inline; }
}

/* 团队卡片网格 — 4列横排 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(12px, 1.5vw, 20px);
}

.team-card {
  background: var(--color-bg);
  padding: clamp(20px, 2.5vw, 28px) clamp(18px, 2vw, 26px);
  border-radius: 1px;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
  border: 1px solid var(--color-gray-100);
}
@media (hover: hover) {
  .team-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0,0,0,.06);
  }
}

.team-card-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.team-card-name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 3px;
  color: var(--color-black);
  margin-bottom: 2px;
}
.team-card-role {
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--color-gray-400);
  text-transform: uppercase;
  font-weight: 400;
}
.team-card-bio {
  font-size: 13px;
  color: var(--color-gray-600);
  line-height: 1.8;
  letter-spacing: .5px;
  margin-top: 8px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .team-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .team-card {
    padding: 18px;
  }
  .team-card-info {
    gap: 4px;
  }
  .team-card-name {
    font-size: 16px;
  }
  .team-card-bio {
    font-size: 12px;
    margin-top: 6px;
  }
}

/* ============================================
   设计理念 APPROACH — 建筑剖切线横条时间轴
   ============================================ */
.approach-section{background:var(--color-white)}
.approach-header{text-align:center;margin-bottom:56px}
.approach-header .section-title-en{font-size:10px;font-weight:400;letter-spacing:5px;text-transform:uppercase;color:var(--color-gray-500);margin-bottom:12px}
.approach-header .section-title-cn{font-family:var(--font-serif);font-size:clamp(26px,4vw,48px);font-weight:300;letter-spacing:8px;color:var(--color-black)}
.approach-band{width:100vw;margin-left:calc(-50vw + 50%);height:420px;background:#eae4dd;display:flex;align-items:center;overflow:hidden}
.approach-band-inner{max-width:var(--max-w);margin:0 auto;position:relative;width:100%;padding:0 clamp(24px,5vw,72px)}
.approach-band-inner::before{content:'';position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);height:2px;background:#5a5550;z-index:0}
.approach-flow{display:flex;justify-content:space-between;position:relative;z-index:1}
.approach-step{display:flex;flex-direction:column;align-items:center;text-align:center}
.approach-step-img{width:120px;height:120px;border-radius:50%;overflow:hidden;border:2px solid var(--color-white);background:var(--color-gray-100);transition:transform .5s var(--ease),border-color .5s var(--ease)}
.approach-step-img img{width:100%;height:100%;object-fit:cover;filter:brightness(.92) saturate(.8);transition:transform .5s var(--ease)}
.approach-step:hover .approach-step-img{transform:scale(1.08);border-color:#5a5550}
.approach-step-num{font-size:16px;color:#8a827a;margin-top:44px;letter-spacing:1px}
.approach-step-en{display:block;font-size:10px;letter-spacing:3px;color:#9e968f;text-transform:uppercase;margin-top:4px}
.approach-step-cn{display:block;font-size:17px;font-family:var(--font-serif);color:#22201e;letter-spacing:2px;margin-top:2px;font-weight:400}
.approach-step-desc{font-size:11px;max-width:150px;color:#5a5550;line-height:1.7;margin-top:8px}
.approach-footer{text-align:center;font-size:17px;color:#5a5550;margin-top:48px;letter-spacing:3px;font-family:var(--font-serif);font-weight:300}
/* responsive approach */
@media (max-width:900px){
  .approach-band{height:auto;padding:80px 0}
  .approach-band-inner::before{display:none}
  .approach-flow{flex-wrap:wrap;gap:clamp(32px,5vw,56px);justify-content:center}
  .approach-step{flex:0 0 calc(33.33% - clamp(32px,5vw,56px))}
}
@media (max-width:600px){
  .approach-step{flex:0 0 calc(50% - clamp(24px,4vw,40px))}
  .approach-step-img{width:100px;height:100px}
}

/* ============================================
   作品档案 — "更多"按钮
   ============================================ */
.works-more-btn {
  position: absolute;
  top: -52px;
  right: 0;
  z-index: 10;
  padding: 8px 18px;
  background: var(--color-white);
  border: 1px solid rgba(0,0,0,.12);
  border-radius: 1px;
  color: var(--color-gray-700);
  font-size: 11px;
  letter-spacing: 2px;
  font-family: var(--font-serif);
  cursor: pointer;
  transition: all .35s var(--ease);
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}
.works-more-btn span {
  font-size: 9px;
  opacity: 0.5;
}
.works-more-btn:hover {
  color: var(--color-black);
  border-color: var(--color-gray-500);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
}

/* ============================================
   WORKS OVERLAY — "更多"项目悬浮窗
   ============================================ */
.works-overlay {
  position: fixed; inset: 0; z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .35s var(--ease);
}
.works-overlay.open { opacity: 1; pointer-events: all; }

.works-overlay-bg {
  position: absolute; inset: 0;
  background: rgba(13,11,9,.82);
  cursor: pointer;
}

.works-overlay-panel {
  position: relative;
  z-index: 2;
  width: 94vw;
  max-width: 960px;
  max-height: 84vh;
  background: var(--color-bg);
  border-radius: 1px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 32px 80px rgba(0,0,0,.25);
  transform: translateY(20px);
  transition: transform .35s var(--ease);
}
.works-overlay.open .works-overlay-panel { transform: translateY(0); }

.works-overlay-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px clamp(24px, 4vw, 40px);
  border-bottom: 1px solid var(--color-gray-100);
  flex-shrink: 0;
}
.works-overlay-title {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 350;
  letter-spacing: 4px;
  color: var(--color-black);
}
.works-overlay-close {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--color-gray-100);
  border: none;
  font-size: 22px; line-height: 1;
  color: var(--color-gray-700);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .3s, color .3s;
  flex-shrink: 0;
  font-weight: 300;
}
.works-overlay-close:hover { background: var(--color-gray-300); color: var(--color-black); }

.works-overlay-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  grid-auto-rows: 1fr;
  gap: clamp(12px, 1.5vw, 20px);
  padding: clamp(20px, 3vw, 36px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1;
}
.works-overlay-grid::-webkit-scrollbar { width: 3px; }
.works-overlay-grid::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: 2px; }

@media (max-width: 600px) {
  .works-overlay-panel {
    width: 96vw;
    max-height: 88vh;
    border-radius: 1px;
  }
  .works-overlay-grid {
    gap: 8px;
    padding: 16px;
  }
  .works-overlay-header { padding: 18px 20px; }
}

/* 弹窗内分类选择卡片 — 图纸索引卡 */
.service-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(20px, 2.5vw, 28px);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-left: 1px solid var(--color-gray-300);
  border-radius: 1px;
  cursor: pointer;
  transition: border-left-color .35s var(--ease),
              border-left-width .35s var(--ease),
              transform .35s var(--ease);
  min-height: clamp(130px, 18vw, 170px);
}
.service-card:hover {
  border-left: 3px solid var(--color-black);
  transform: translateX(2px);
}
.service-card-name-en {
  font-family: var(--font-serif);
  font-size: clamp(13px, 1.5vw, 16px);
  font-weight: 400;
  letter-spacing: 6px;
  color: var(--color-black);
  line-height: 1.3;
  margin-bottom: 6px;
}
.service-card-name-cn {
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--color-gray-500);
}
.service-card-count {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 350;
  letter-spacing: 2px;
  color: var(--color-black);
  line-height: 1;
}
.service-card-count span {
  display: block;
  font-size: 9px;
  letter-spacing: 3px;
  color: var(--color-gray-400);
  margin-top: 4px;
  font-weight: 400;
  text-transform: uppercase;
}

/* 悬浮窗内迷你项目卡片 */
.ovl-card {
  cursor: pointer;
  overflow: hidden;
  background: var(--color-white);
  border-radius: 1px;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
  -webkit-tap-highlight-color: transparent;
  width: clamp(160px, 20vw, 200px);
}
@media (hover: hover) {
  .ovl-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.08); }
}

.ovl-card-thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-gray-100);
}
.ovl-card-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
@media (hover: hover) {
  .ovl-card:hover .ovl-card-thumb img { transform: scale(1.08); }
}

.ovl-card-info {
  padding: 14px 14px 16px;
  flex: 1;
}
.ovl-card-name {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 2px;
  color: var(--color-black);
  margin-bottom: 4px;
}
.ovl-card-meta {
  font-size: 10px;
  color: var(--color-gray-500);
  letter-spacing: 1px;
}
.ovl-card-brief {
  font-size: 11px;
  color: var(--color-gray-700);
  line-height: 1.6;
  margin-top: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 600px) {
  .ovl-card-name { font-size: 13px; letter-spacing: 1px; }
  .ovl-card-info { padding: 10px 10px 12px; }
}


/* ============================================
   WORKS — 4 列 1:1 网格 + 分类标签筛选
   ============================================ */
.works-section-new {
  background: var(--color-white);
}
.works-section-new .section-header {
  text-align: center;
  margin-bottom: clamp(32px, 5vh, 48px);
}

/* 分类标签 tabs */
.cat-tabs {
  display: flex;
  justify-content: center;
  gap: clamp(20px, 4vw, 48px);
  margin-bottom: clamp(40px, 6vh, 64px);
  flex-wrap: wrap;
  row-gap: 16px;
}
.cat-tabs .cat-tab {
  background: none;
  border: none;
  padding: 10px 2px 12px;
  cursor: pointer;
  text-align: center;
  position: relative;
  transition: opacity .35s;
  opacity: .38;
}
.cat-tabs .cat-tab:hover { opacity: .65; }
.cat-tabs .cat-tab.active { opacity: 1; }
.cat-tabs .cat-tab::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 1.5px;
  background: var(--color-black);
  transition: width .45s var(--ease);
  border-radius: 1px;
}
.cat-tabs .cat-tab.active::after { width: 100%; }
.cat-tabs .cat-tab-cn {
  display: block;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--color-black);
  margin-bottom: 4px;
}
.cat-tabs .cat-tab-en {
  display: block;
  font-family: var(--font-serif);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-gray-500);
}

/* 搜索框 */
.search-bar {
  display: flex;
  align-items: center;
  max-width: 420px;
  margin: 0 auto clamp(40px, 6vh, 64px);
  border-bottom: 1.5px solid var(--color-gray-300);
  transition: border-color .35s var(--ease);
  padding: 0 4px;
}
.search-bar:focus-within {
  border-bottom-color: var(--color-black);
}
.search-icon {
  width: 16px;
  height: 16px;
  color: var(--color-gray-500);
  flex-shrink: 0;
  transition: color .35s var(--ease);
}
.search-bar:focus-within .search-icon {
  color: var(--color-black);
}
.search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--color-black);
  padding: 10px 12px;
  font-weight: 350;
}
.search-input::placeholder {
  color: var(--color-gray-500);
  letter-spacing: 1px;
  font-weight: 300;
}

/* 作品列表布局 */
.works-grid-new {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 2vw, 28px);
}

.work-card-row {
  display: block;
  text-decoration: none;
  color: inherit;
}

.work-card-row-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: opacity .35s var(--ease);
  cursor: pointer;
}

.work-card-row-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.work-card-row-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
  filter: brightness(.96);
}

.work-card-row-text {
  flex: 1;
  min-width: 0;
}

.work-card-row-name {
  font-size: clamp(15px, 2vw, 17px);
  letter-spacing: 1px;
  color: var(--color-black);
  margin-bottom: 5px;
  line-height: 1.4;
  transition: color .35s var(--ease);
}

.work-card-row-meta {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--color-gray-500);
  line-height: 1.4;
}

/* Hover：文字变灰 + 图片微动 */
@media (hover: hover) {
  .work-card-row:hover .work-card-row-name {
    color: var(--color-gray-500);
  }
  .work-card-row:hover .work-card-row-thumb img {
    transform: scale(1.05);
    filter: brightness(1);
  }
}

/* 响应式 */
@media (max-width: 768px) {
  .works-grid-new {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .work-card-row-name {
    font-size: 14px;
  }
  .work-card-row-meta {
    font-size: 11px;
  }
  .work-card-row-inner {
    gap: 8px;
  }
}

@media (max-width: 400px) {
  .works-grid-new {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .work-card-row-name {
    font-size: 13px;
  }
  .work-card-row-inner {
    gap: 6px;
  }
}


/* ============================================
   CONTACT — 四宫格信息
   ============================================ */
.contact-section { background: var(--color-white); }

.contact-lead {
  text-align: center;
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--color-gray-500);
  letter-spacing: 2px;
  margin-bottom: clamp(32px, 5vh, 56px);
}
.contact-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-gray-100);
  border-radius: 1px;
  overflow: hidden;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  text-align: left;
  padding: 36px 28px;
  background: var(--color-bg);
  transition: background .35s var(--ease);
  min-height: 110px;
}
@media (hover: hover) {
  .contact-item:hover { background: var(--color-white); }
}
.contact-icon {
  font-size: 20px;
  flex-shrink: 0;
  opacity: .5;
  line-height: 1;
  margin-top: 1px;
}
.contact-item h5 {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 3px;
  margin-bottom: 6px;
  color: var(--color-gray-500);
  font-weight: 400;
}
.contact-item p {
  font-size: 14px;
  color: var(--color-black);
  letter-spacing: .5px;
}
.contact-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-gray-500);
  letter-spacing: 2px;
  margin-top: 36px;
  font-family: var(--font-serif);
}

@media (max-width: 900px) {
  .contact-items {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .contact-items {
    grid-template-columns: 1fr 1fr;
    gap: 1px;
  }
  .contact-item {
    padding: 24px 16px;
    min-height: 120px;
    align-items: center;
  }
  .contact-item h5 { font-size: 10px; letter-spacing: 2px; }
  .contact-item p { font-size: 12px; }
}
@media (max-width: 400px) {
  .contact-items { grid-template-columns: 1fr; }
}


/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: #1a1816;
  color: rgba(255,255,255,.4);
  padding: 64px 0 32px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.footer-logo {
  font-family: var(--font-serif);
  font-size: 18px;
  color: #fff;
  letter-spacing: 4px;
  display: block;
  margin-bottom: 8px;
  font-weight: 300;
}
.footer-logo-img {
  width: 150px;
  height: auto;
  filter: invert(1);
  display: block;
  margin-bottom: 12px;
}
.footer-brand p { font-size: 11px; letter-spacing: 3px; color: rgba(255,255,255,.3); }
.footer-links { display: flex; gap: 32px; }
.footer-links a { font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: rgba(255,255,255,.4); }
.footer-links a:hover { color: #fff; opacity: 1; }
.footer-bottom {
  padding-top: 24px;
  text-align: center;
  font-size: 10px;
  letter-spacing: 2px;
  color: rgba(255,255,255,.2);
}

@media (max-width: 600px) {
  .footer-top { flex-direction: column; gap: 24px; text-align: center; }
  .footer-links { justify-content: center; }
}


/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(13,11,9,.96);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0; pointer-events: none;
  visibility: hidden;
  transition: opacity .3s var(--ease), visibility .3s var(--ease);
}
.lightbox.active { opacity: 1; pointer-events: all; visibility: visible; }
.lightbox.active .lightbox-close,
.lightbox.active .lightbox-prev,
.lightbox.active .lightbox-next {
  opacity: 1;
  pointer-events: auto;
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 24px;
  background: none; border: none;
  color: rgba(255,255,255,.6);
  font-size: 36px;
  cursor: pointer;
  z-index: 10;
  line-height: 1;
  font-weight: 200;
  transition: color .3s;
  opacity: 0;
  pointer-events: none;
}
.lightbox-close:hover { color: #fff; }
.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,.06);
  border: none;
  color: rgba(255,255,255,.6);
  font-size: 24px;
  padding: 18px 12px;
  cursor: pointer;
  transition: background .3s, color .3s;
  opacity: 0;
  pointer-events: none;
}
.lightbox-prev { left: 12px; }
.lightbox-next { right: 12px; }
.lightbox-prev:hover, .lightbox-next:hover { background: rgba(255,255,255,.14); color: #fff; }
.lightbox-content { max-width: 92vw; max-height: 85vh; display: flex; align-items: center; justify-content: center; }
.lightbox-content img { max-width: 92vw; max-height: 85vh; object-fit: contain; border-radius: 1px; }


/* ============================================
   PROJECT DETAIL PAGE — 电影感全屏风格
   ============================================ */

/* Hero — 缩小版首图 */
.proj-hero {
  position: relative;
  margin-top: var(--nav-h);
  width: 100%;
  height: clamp(240px, 30vh, 360px);
  background: #0d0b09;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.proj-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(.88);
}
.proj-hero img:hover {
  transform: scale(1.02);
}
.proj-hero::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: clamp(80px, 15vh, 160px);
  background: linear-gradient(transparent 0%, rgba(13,11,9,.4) 50%, var(--color-bg) 100%);
  pointer-events: none;
  z-index: 2;
}

.back-link {
  position: absolute;
  top: 24px; left: clamp(24px, 5vw, 72px);
  z-index: 5;
}
.back-link a {
  display: inline-block;
  padding: 9px 20px;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--color-black);
  transition: background .3s;
  font-weight: 400;
}
.back-link a:hover { background: #fff; opacity: 1; }

/* ----------------------
   主布局：侧边栏 + 内容区
   ---------------------- */
.proj-main-layout {
  display: flex;
  margin-top: var(--nav-h);
}

/* Sidebar — 左侧跟随滚动 */
.proj-sidebar {
  position: static;
  flex-shrink: 0;
  width: 320px;
  background: var(--color-bg);
  border-right: 1px solid var(--color-gray-100);
  padding: clamp(40px, 5vh, 60px) clamp(24px, 4vw, 40px);
}
.proj-sidebar-inner {
  position: relative;
}
.proj-back-link {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--color-gray-500);
  text-decoration: none;
  margin-bottom: 24px;
  transition: color 0.2s;
}
.proj-back-link:hover {
  color: var(--color-black);
}
.proj-sidebar-category {
  font-size: 10px;
  letter-spacing: 5px;
  color: var(--color-gray-500);
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 400;
}
.proj-sidebar-location {
  font-size: 12px;
  letter-spacing: 6px;
  color: var(--color-gray-500);
  margin-bottom: 4px;
  font-weight: 400;
}
.proj-sidebar-subtitle {
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--color-gray-500);
  margin-bottom: 8px;
  font-weight: 400;
}
.proj-sidebar-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 300;
  letter-spacing: 8px;
  color: var(--color-black);
  line-height: 1.3;
  margin-bottom: 8px;
}
.proj-sidebar-title-en {
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--color-gray-500);
  margin-bottom: 28px;
}
.proj-sidebar-divider {
  width: 40px;
  height: 1px;
  background: var(--color-gray-300);
  margin-bottom: 36px;
}

/* 侧边栏信息列表 */
.proj-sidebar-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.proj-sidebar-desc {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.proj-sidebar-highlights {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.highlights-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.info-label {
  font-size: 9px;
  letter-spacing: 3px;
  color: var(--color-gray-500);
  text-transform: uppercase;
  font-weight: 400;
}
.info-value {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--color-gray-700);
  line-height: 1.7;
  letter-spacing: .5px;
}

/* Main Content */
.proj-content {
  background: var(--color-white);
  flex: 1;
}

/* 侧边栏项目描述 — 与 info-value 统一 */
.proj-sidebar-desc .info-value {
  font-size: 13px;
  color: var(--color-gray-700);
  line-height: 1.7;
  letter-spacing: .5px;
}

/* Project Images — 电影感大图展示 */
.proj-images-section {
  padding: 30px clamp(40px, 5vw, 80px) clamp(80px, 10vh, 120px);
  max-width: 1400px;
}
.proj-images-list {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 8vh, 80px);
}

.proj-images-group {
  display: flex;
  flex-direction: column;
  gap: clamp(24px, 4vh, 40px);
}

.proj-images-group-title {
  font-family: var(--font-serif);
  font-size: 11px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--color-gray-500);
  margin-bottom: 30px;
  padding-left: 8px;
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: 8px;
}
.group-title-cn {
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 8px;
  color: var(--color-gray-800);
  font-weight: 500;
}
.group-title-divider {
  color: var(--color-gray-300);
  font-size: 14px;
}
.group-title-en {
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--color-gray-500);
  text-transform: uppercase;
}

/* 效果图网格 — 自适应比例 */
.proj-images-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 2vw, 28px);
  align-items: start;
}
/* 单一图片自动占满整行宽度（只有1张或奇数张时最后一张占满） */
.proj-images-grid .proj-img-block:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.proj-images-grid .proj-img-block {
  margin-bottom: 0;
}

/* 通栏大图：标记 fullWidth 的图片占满两列 */
.proj-images-grid .proj-img-block--full {
  grid-column: 1 / -1;
}

/* spacer：空占一格，保持 grid 节奏 */
.proj-images-grid .proj-img-spacer {
  /* 空元素，仅占位 */
}

.proj-img-block {
  position: relative;
  display: flex;
  flex-direction: column;
}

.proj-img-wrap {
  width: 100%;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: var(--color-gray-100);
  border-radius: 1px;
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
}

/* 图片网格：自适应高度，不强制比例 */
.proj-images-grid .proj-img-wrap {
  aspect-ratio: auto;
}

/* 平面图分组：统一固定比例，四张一样大，完整显示不裁切 */
.proj-images-group--plans .proj-img-wrap {
  aspect-ratio: 16 / 10;
  background: #ffffff;
}
.proj-images-group--plans .proj-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.proj-img-wrap img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform .7s var(--ease);
  object-fit: cover;
}

@media (hover: hover) {
  .proj-img-wrap:hover img {
    transform: scale(1.03);
  }
}

.img-type-badge {
  position: absolute;
  top: clamp(12px, 2vw, 20px);
  left: clamp(12px, 2vw, 20px);
  z-index: 2;
  padding: 6px 12px;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
  border-radius: 1px;
  font-weight: 400;
}

.proj-img-caption {
  margin-top: clamp(12px, 1.5vw, 18px);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.proj-img-caption-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.proj-img-caption-cn {
  font-size: 12px;
  color: var(--color-gray-700);
  line-height: 1.4;
  letter-spacing: 0.5px;
}
.proj-img-caption-en {
  font-size: 10px;
  color: var(--color-gray-400);
  line-height: 1.4;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

/* 集中式图说 — 位置对齐（无三角形） */
.proj-img-caption-group {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: auto;
  align-items: flex-end;
  padding-top: clamp(12px, 1.5vw, 18px);
}
.proj-img-caption-group .proj-img-caption {
  margin-top: 0;
}
/* Caption A 靠左对齐 */
.proj-img-caption--align-left {
  text-align: left;
}
.proj-img-caption--align-left .proj-img-caption-content {
  align-items: flex-start;
}
/* Caption B 靠右对齐 */
.proj-img-caption--align-right {
  text-align: right;
}
.proj-img-caption--align-right .proj-img-caption-content {
  align-items: flex-end;
}

/* Project Nav */
.proj-nav {
  padding: 48px 0 60px;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-100);
}
.proj-nav-inner { display: flex; align-items: center; justify-content: space-between; }
.proj-nav-link { display: flex; flex-direction: column; gap: 5px; transition: opacity .3s; }
.proj-nav-link:hover { opacity: 1; }
.proj-nav-link .nav-label {
  font-size: 10px; letter-spacing: 3px;
  color: var(--color-gray-500);
}
.proj-nav-link .nav-title {
  font-family: var(--font-serif);
  font-size: 14px; letter-spacing: 3px;
  color: var(--color-black);
}
.proj-nav-all {
  font-size: 11px; letter-spacing: 3px;
  color: var(--color-gray-500);
  padding: 10px 22px;
  border: 1px solid var(--color-gray-300);
  transition: all .35s;
}
.proj-nav-all:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  opacity: 1;
}

/* Mobile project detail */
@media (max-width: 1024px) {
  .proj-main-layout {
    flex-direction: column;
  }
  .proj-sidebar {
    position: static;
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-gray-100);
    padding: clamp(40px, 6vh, 60px) clamp(24px, 5vw, 40px);
    z-index: auto;
  }
  .proj-content {
    background: var(--color-bg);
    margin-left: 0;
    width: 100%;
  }
  .proj-images-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .proj-hero {
    height: clamp(200px, 25vh, 280px);
  }
  .proj-sidebar {
    padding: clamp(32px, 5vh, 48px) clamp(20px, 4vw, 32px);
  }
  .proj-sidebar-title {
    font-size: clamp(20px, 5vw, 26px);
    letter-spacing: 5px;
  }
  .proj-sidebar-desc .info-value {
    font-size: 13px;
    line-height: 1.7;
  }
  .proj-images-section {
    padding: 30px clamp(16px, 3vw, 24px) clamp(48px, 8vh, 72px);
  }
  .proj-images-grid {
    grid-template-columns: 1fr;
    gap: clamp(16px, 3vh, 24px);
  }
  .proj-img-caption {
    font-size: 11px; letter-spacing: 1px;
  }
}
@media (max-width: 600px) {
  .proj-nav-inner { flex-direction: column; gap: 24px; }
  .proj-nav-link { align-items: center; text-align: center; }
  .proj-sidebar-info {
    gap: 16px;
  }
  .info-value {
    font-size: 13px;
  }
}


/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }


/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-gray-500); }

/* ============================================
   WORKS PAGE
   ============================================ */
.works-page .nav {
  background: rgba(247,244,240,.65);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
.works-page .nav-logo { color: rgba(0,0,0,.75); }
.works-page .nav-links a { color: rgba(0,0,0,.55); }
.works-page .nav-links a:hover { color: rgba(0,0,0,.95); }
.works-page .nav-links a.active { color: rgba(0,0,0,.95); }
.works-page .nav-links a.active::after { width: 80%; }

.works-main {
  padding-top: calc(var(--nav-h) + clamp(60px, 8vh, 80px));
  padding-bottom: clamp(60px, 8vh, 80px);
}

.works-header {
  text-align: center;
  padding: 0 clamp(24px, 5vw, 72px) clamp(40px, 6vh, 56px);
}

.works-title-en {
  font-size: 11px;
  letter-spacing: 8px;
  color: var(--color-gray-400);
  text-transform: uppercase;
  font-weight: 400;
}

.works-title-cn {
  font-family: var(--font-serif);
  font-size: clamp(32px, 6vw, 48px);
  letter-spacing: 8px;
  color: var(--color-black);
  margin-top: clamp(8px, 1vh, 16px);
  font-weight: 400;
}

.works-desc {
  font-size: 14px;
  color: var(--color-gray-500);
  margin-top: clamp(16px, 2vh, 24px);
  letter-spacing: 1px;
}

.works-filters {
  display: flex;
  justify-content: center;
  gap: clamp(16px, 3vw, 28px);
  padding: 0 clamp(24px, 5vw, 72px) clamp(48px, 6vh, 64px);
  flex-wrap: wrap;
}

.filter-btn {
  font-size: 12px;
  letter-spacing: 2px;
  color: rgba(0,0,0,.55);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 16px;
  transition: color .35s;
  position: relative;
  text-transform: uppercase;
}

.filter-btn::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: rgba(0,0,0,.6);
  transition: width .4s var(--ease);
}

.filter-btn:hover, .filter-btn.active {
  color: rgba(0,0,0,.95);
}

.filter-btn:hover::after, .filter-btn.active::after {
  width: 80%;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(24px, 4vw, 40px);
  padding: 0 clamp(24px, 5vw, 72px);
  max-width: var(--max-w);
  margin: 0 auto;
}

.works-card {
  cursor: pointer;
  transition: transform .35s var(--ease);
}

.works-card:hover {
  transform: translateY(-6px);
}

.works-card-thumb {
  aspect-ratio: 3/4;
  overflow: hidden;
  margin-bottom: clamp(12px, 1.5vh, 16px);
}

.works-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}

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

.works-card-info {
  padding: 0 4px;
}

.works-card-name {
  font-family: var(--font-serif);
  font-size: clamp(16px, 3vw, 20px);
  letter-spacing: 2px;
  color: var(--color-black);
  margin-bottom: 4px;
}

.works-card-meta {
  font-size: 12px;
  color: rgba(0,0,0,.5);
  letter-spacing: 1px;
}

@media (max-width: 768px) {
  .works-main {
    padding-top: calc(var(--nav-h) + clamp(48px, 6vh, 64px));
    padding-bottom: clamp(48px, 6vh, 64px);
  }
  .works-header {
    padding-bottom: clamp(32px, 4vh, 40px);
  }
  .works-title-cn {
    font-size: clamp(28px, 7vw, 36px);
    letter-spacing: 6px;
  }
  .works-filters {
    padding-bottom: clamp(32px, 4vh, 48px);
    gap: clamp(12px, 2vw, 20px);
  }
  .filter-btn {
    font-size: 11px;
    letter-spacing: 1.5px;
  }
  .works-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: clamp(20px, 3vw, 28px);
    padding: 0 clamp(16px, 3vw, 24px);
  }
  .works-card-name {
    font-size: clamp(16px, 4vw, 18px);
  }
}

/* ================================
   封面图调整 — 按项目定制
   ================================ */
.swiper-card[data-slug="guocaihao"] .swiper-card-img img {
  transform: scale(1.15);
}
.swiper-card[data-slug="guocaihao"]:hover .swiper-card-img img {
  transform: scale(1.23);
}